Fastest way to boost your Artemis CP2/Diana Chaser fps - Simple
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- Опубліковано 3 чер 2021
- The #fastest way to #boost your #Artemis #CP2 #fps
This video describes the easiest and quickest way to increase your Artemis CP2/Diana Chaser fps by means of stretching the hammer spring.
I will also show you why increasing the spring length works by means of a basic experiment.
If you would like to contribute to the channel please use my Paypal tip account
paypal.me/Tyrone8511
See the video below for more ways to increase your fps
• 3 WAYS to increase fps...
If you want to Improve your accuracy remember to visit the below playlist
• Playlist
If you love your CP2 as much as I do remember to check out this playlist
• Artemis CP2 & CP1
Happy Shooting! - Спорт
Dear Tyrone , I really like your modifications. They are simple and straight forward , and with your explaination , I learnt a lot more about ag. Thanks ! 🙏
@K Lee really glad it could help you, Thank you for your interest and comments on my videos
@@African-Budget-Pellet-Gunner Hey, can you give me some advice on how to upgrade a diana stormrider? Where
i live they are locked to 7,5 joules...
The easiest way will be to install a transfer port with a larger hole, about 3.5mm is great starting point. Check out my vids on how to disassemble and reassemble the PR900, this will show you all you need to know. Just for your info the PR900 and stormrider are almost the same rifle. Let me know how it goes
Dear Tyrone,
I am new on your Channel here and I like it very much, because you explain your modifications very good. The combination of video and your Explanation makes it easy to imitate your work steps. So please do not stop with your channel. Best wishes from Germany. Ralph
@Ralph Hartert Thank You so much for your kind words I am so glad you enjoy the videos. I will keep making the videos as long as I can
Excellent series! I Followed these vids and now I can shoot through 2 x 2mm thick stainless steel plates at 25m with my CP2. My beloved little lazer beam now kicks ass
Thanks so much, glad you enjoyed the series. The CP2 is great
The Chaser is a great Toy, i‘ve shot one a few weeks ago in a buddy’s basement and it was fun. Think i would buy one for indoor shooting but i already have my PP700S-A and a Baikal MP61 for that (plus a Glock 17 and a PPQ CO2).
The big plus of the PP700 for me is that i can adjust power over the hammerspring and the regulator and dont need Co2 caps to shoot, a few strokes with the pump and I’m ready to go 😉.
Great Video, thank you for sharing
Thanks Andreas for your comments, glad you're enjoying the videos
So you might have a tiny increase in power for a few hundred shots but that spring is damaged so it will give less power than standard after a while . A upgraded heavy spring costs just a few quid so might as well just buy it . Also i've done alot of working with this rifle and to have any real gains you need to open to ports and valve up
Ok i couldn't find anything for a spacer so i followed your instructions on stretching the spring and shot at my normal target which is just a box filled with more boxes that always stops my pellets. Well it blew the back out of the boxes and went through the front of my bathroom door. Thank you for the awesome video sir.😜
Glad I could help
Simple enough. I personally like your mod that adds a spacer. I believe you can better control / adjust the compression for consistent energy with that approach.
@Bob Andrews Thanks for your comment. Personally I am with you on that, I also prefer the spacer method.
Danke für dein tolles Video, kaufe mir im zur Zeit auch eine Chase....
Sounds great, you will love the chaser
Thanks for the vid, are the shots consistent as the pressure goes down, ie what is the FPS spread?
@Matt Gough that is the beauty of co2 it is self regulating to a degree so you can get fairly consistent fps for most of the capsule. This is especially true when your rifle is efficient and using the gas properly.
The only thing I dislike about disassembly is there are so many different types and sizes of drivers needed. Allen 2 types, phillips, straight 2 types.
Hi, I'm watching your videos, they're great! My question would be, which Artemis cp2 would you recommend for rat hunting? 4.5mm or 5.5mm? Hi!
@Messor Thanks for your kind words. Specifically for ratting I would go for a 22 up to 20m over 20m I would go 177 just for the flatter trajectory. 22 has more to gain if you decide to mod going forward
@@African-Budget-Pellet-Gunner Thanks for the reply! Because of the trajectory of the projectile, and since you said the Gamo T-10 projectile can shoot pigeons from 45 meters, I opted for the 177! Dirt! The videos are good!
I have taken pigeons up to 50m with my CP2 so it is possible. I look forward to hearing about your adventures with your CP2
You should also do a video on drilling the transfer port. I did this on my Diana Stormrider, and got the gun back to its 900FPS factory setting, from the detune in came it. I will be doing the same with this gun. I mean, you can buy the 3.5mm transfer port, but it comes detuned in Canada. Unless, of course, the transfer port is already set at 3.5mm.
@Sassy Silver I have something similar in mind for the future Thanks for the idea and glad your rifle is performing as desired
I still like your videos! I'm also doing the modifications on my Artemis now. I ordered a Boblov NK-1000 rangefinder for more accurate shots. I would like to know what application you use to measure FPS.
@Messor a range finder sounds like a very good addition to your arsenal. I use the chrono connect app to measure fps
@@African-Budget-Pellet-Gunner Thank you!
@@African-Budget-Pellet-Gunner Unfortunately, this application is not available for iPhone... :(
Sorry, that is unfortunate
now that you have acces to the hammer spring, can't you just trow a spacer in ?
@ThePerizzo yes you could but you would need to prepare the spacer to make sure it fits correctly, it has a similar effect to stretching the spring. You could also do both at this stage
Thanks Ty what length spacer would u recommend?
Hi Mark I would go with 4-5mm and take it from there. If you go over 6mm you will probably need to shorten the end cap
After watching your videos, Tyrone, I am convinced that for the low cost and the options the Artemis or Chaser is the best rifle/pistol combo you can buy, do you agree? also, how do you feel about the magazine that is available? Thank you.
@Charles Nolan most definitely the Artemis CP2 is a lot of gun for the money and at a good quality as well. I personally haven't had any issues with the magazines and haven't heard of many issues yet either. I do feel that the CP2 is really a good match to so many all the way from beginner to advanced, from target shooter to hunting/pest control. And best of all the price is awesome
@@African-Budget-Pellet-Gunner in South America, Mexico , Colombia, and the country’s are legal the costs of the kit with barrel Extra and 2 mags is around 320€ 350us dollars
Hi José wow, that is quite expensive at 350$ I believe most places in Europe and US is around 120-140$ what other options do you have in your price range
@@African-Budget-Pellet-Gunner yeah is crazy, but here in Spain I paid 119€ and I just love it the precision is incredible and is very powerful how it comes but very powerful I have the 5.5mm is like .22cal and I have different bullets but with some of them really is a beast it can kill for sure a person so this is not a toy is powerful as I said already from fabric at least mine is wow and I have many co2 guns even the Many t4e ram that I just love because they are perfectly replicas
I love the Artemis CP2 I recommended highly is powerful and very accurate is my humble opinion and is 2 in 1 gun and rifle just love it 🥰
I dont know if I have told you that I made several transfer ports for crosman, beeman, and pretty sure itll work on the cp2, out of the innards of a regular tire valve. Cut the rubber off the outside and you'll have either a hard copper or brass lookng piece. Cut it down to length needed, you can get several out of it. Take the valve stem out and drill it out then take a rat tail file and finish smoothing it on the inside . After you cut it off to length. (The inside is done), push the piece onto the file end and hold it loosely in one hand holding it with a little pressure against a small barrell sander on a dremel taking down each end to fit the t/f port holes. from each end and leave the bevel in the middle to anchor it between the breech and the valve. Allow it to spin in your hand to get an even take down of material..Anyway if you ever need some dont sweat it I'll make you some!!...unless you do it first!..
That sounds like a great idea, I will need to hijack 1of the boys bikes. 🤫🙈
@@African-Budget-Pellet-Gunner Lol!!...I found an old stem in an autozone parking lot and used it for the first ones. Now I just stop by my tire shop and get a bad one for free..lol
Нихрена не понял, но очень интересно :)...
Dear Tyrone, I have a question: According to your opinion is the co2 powered cp2 quieter than the pr900/stormrider with the same supressor? Thanks
Yes most definitely and that is due to there being more air and at higher pressures on the pcp, it is louder for sure. A bigger supressor will be needed on the PR900 to make it as quiet as the CP2.
I wish they cut a different thread on the barrel, this M10 is a rare one. I did not managed to get a M10-UNF adapter (at a reasonable price) to put a larger supressor on.
The easiest way is to buy an adapter they are quite readily available. I know buck-rail has an adapter, will definitely find on ebay as well
Hi ,what scope risers are u using? Can you use the magazine with rather? Ty.
Just normal scope rings Paul. With the CP2 you can use medium or high mounts and you will be fine
This is my youtube account I will use for publishing vidéos on CP2 and other toys. Mikaël
Great I will check it out
hi Tyron, yes and no, i don't actually wish to lower my fps, my aim is only to reduce excess air power, so if i could click it down until the first hint of a drop in fps, to then go back one click, and if my math is ok, it would increase the shot count of the co2 capsule by 20% whilst still retaining the original fps
Your only option is to play around with the transfer port size will be trial and error unfortunately. Check for a chap by the name of Jeff Slade on Facebook I know he has got great results with shot count
That will just make the gun harder to reload.plus the spring will go back after a few shots. You need to change the valve spring to a softer one to get any more power
@kristian evans Thanks for your comment. You are correct in that the gun will be harder to load however the spring won't loose it's tension. I actually done a similar mod about 2 months ago where I stretched the spring to just over 75mm and as can be seen in the video it was still the same length. Changing the spring in the co2 valve is another way to increase the fps. If you check out my previous video it is 1 of the options I mentioned. If you have put in a lighter spring in the co2 valve what was your results?
@@African-Budget-Pellet-Gunner i have put a lighter valve spring in but haven’t got a chronograph yet. But it’s definitely a lot more power its around the same power as the rifle barrel but using the pistol barrel if that makes sense
@kristian evans makes sense, perhaps try out the chrono connect app it works quite well. Interested to see your results
I have a question, after the the spring has been streched, doesen't automatically get shorter again during use? Or does the spring force remain constant. Thank you for you answer!
It doesn't really get shorter no, I stretched mine and after a year of regular use it was still the same length. What you are changing is the length and this has an effect as more pressure is needed then to compress the spring. Stretching or pre-tensioning will have similar effects
@@African-Budget-Pellet-Gunner thank you very much
You're welcome let me know how your mods turn out
Are you sure I thought if you compress (or shortened ) the spring and making it weaker will let mor air in the chamber ?
@Ray so when it comes to springs if you want to increase the force/tension the spring exerts you have 2 options. 1. You can pre-tension the spring by basically compressing it but keeping the same working length or 2. You stretch the spring but keep the same working length. It is obviously also possible to change the spring to a thicker guage or longer length
if you weaken the valve spring, it lets more air in
if you strengthen the hammer spring, it lets more air in
i think that's the theory
@N Marbletoe you are 100% correct sorry @Ray I thought you were referring to the hammer spring. Thanks @N Marbletoe
Hello, nice video, what are the measurements of the original spring? Diameter, length and thickness of the metal coil? Thank you very much.
@CarmineD. The original spring is L:70mm OD:10mm wire guage:1mm
@@African-Budget-Pellet-Gunner thank you very much.
You're welcome, happy shooting
@@African-Budget-Pellet-Gunner If you wanted to insert a larger spring, would one with a larger diameter fit?
No the hammers inside diameter is only slightly bigger than 10mm so you can make the spring longer but not bigger diameter. For length I would probably limit to about 85mm
Hi! Is it ok to leave inserted in the rifle the co2 punctured? For how long is it ok?
Thanks!
@Diego Cena I always leave mine in and have never had any problems.
Good to know.
Thanks for replying!
@Diego Cena Thanks, no problem I try to reply to all the comments. You should check out the new bottle cap challenge and join in
Hy Tyrone, how many fps do you gain doing that ? On one of your other video, I saw you were putting also a spacer of rubber for 4 mm ? Do you do both of the system ?
Mikaël
It is mostly dependent on your caliber. If 177 and you do 5mm spacer, stretch spring, drill out to 3.8mm and enlarge valve volume you can expect around 10fpe. If you do all of the above for .22 and drill to 4.2mm you can expect about 11fpe. Your shot count with all the mods will drop to 20 or less per capsule
@@African-Budget-Pellet-Gunner Thanks so much. I will try them step by step. Mine is a .22
You should get to around 11fpe, keep us in the loop, I look forward to hear about your progress
@@African-Budget-Pellet-Gunner I will
I may do a vidéo too, in french ... and I will promote you channel buddy.
Awesome thanks so much, I look forward to it, you must let me know if you want french subtitles for some of my vids then I will add them for you
can you put the hammer spring of a 5.5 in a 4.5? of this cp2 ? is there any difference between the two hammer springs ? (length, diameter, number of rotations) if so how many fps could you achieve. greetings from Belgium Henk
@lucatoni dzi yes these springs are identical, there are only a few differences. The end cap is different, the holes on the co2 valve are swopped around and there is difference in the pellet probe between the 177 and 22 and obviously the barrel
@lucatoni dzi with regards to fps from the rifles(CP2). Standard in 177 you can expect 600fps, with mods it will probably go up to around 750fps. In 22 standard is 500fps with mods probably close to or just under 600fps. 1 subscriber who did the mods on his 22 said he got 575fps over a chronograph.
Happy Shooting
Tyrone
I just saw that you can get different hammer springs for the cp2 and the difference is the number of rotations on the spring 27 turns for 4.5 and 32 turns for 5.5. so they may have more power. and I ordered one for my 4.5 I'll let you know the result with 32 rotations greetings Henk
the web shop is bagnall & kirkwood spare parts
in England
@lucatoni dzi yes you will definitely be able to order various size springs just remember stronger/longer spring = more power but also = less shots per co2 capsule
Dear Tyrone ,805 fps is really good power ！Other than stretching the hammer spring , have you done anything to the gun ？ Thanks ！
@K Lee I have done a few mods to my CP2. I have the spring stretched out to 90mm. I also have about 9mm of spacers inside the hammer to pretension the spring. The rest is pretty standard.
@@African-Budget-Pellet-Gunner Did you replace a lighter spring in the valve to this gun ？😊
By the way , could you tell me more about the chnoro connect app ？🙏😊
@K Lee not yet, my CP2 co2 valve still has the original valve spring. I have been using the chrono connect app for a while now and I really like it. Unfortunately I don't own a chronograph to test the absolute accuracy of the app but what I can say is if I make adjustments to the rifle or pellet, I see that in the fps reflected on the app so it seems to be fairly accurate. Hope this helps you.
@@African-Budget-Pellet-Gunner Dear Tyrone , could you give me the name of your chrono app ? Or do you have a link to it ? 😉🙏
@K Lee please see the link below
play.google.com/store/apps/details?id=com.chronoconnect.mobile.lite
Hello Tyrone, how did this modification effect the shot count?
Well with all the mods my shot count is just under 20 shots
@@African-Budget-Pellet-Gunner Thanks for the information Tyrone, I think I will stick to stock for a while and then go with the spacer.
You're welcome with just the spacers your shot count will probably drop to around 30. On average what I have seen for every mod is a 10% increase fps from original but with about 25% reduction in shot count
This upgrade is truly easy at zero cost, but unfortunately not lasting long. If we achieve the lenght increase by puling the spring after numerous shots it slowly goes back to its original size . The best way is just to order a springs with the following sizes : for Diana Chaser pistol original size is 70 mm / 1 mm wire / ext. diameter 10mm . you can go up to 90 mm , but safely go for 85 mm . For diana chaser rifle the original spring is 75 mm and you can go up to 95 mm, but it's better with 90 mm. In both cases you definitely winning the increase of the velocity , but losing significant number of shots . But as we all know : The fun have no unreachable cost . Cheers !
@Georgi Voyvodov Thanks for your comment and input. Welcome to the channel and family
Я, пошёл немного по другому пути. Порты увеличил до 4,2 мм, массу ударника, свинцовыми пулями 1,0 г на 5-6 г, и уменьшил пружину ударника до 65 мм. Сделал мод для клапана. Это, на длинном стволе. Пружину заказывал новую 1,0*10*90. В итоге, с 12 г со2 18-20 выстрелов пробвающих доску 20 мм с 5 м, и консервную банку, насквозь, с 20 м. Калибр 5,5, пуля 1,04 г. На 20 м кучность 20-25 мм, с оптикой, конечно.
На короткий ствол, ставлю родную пружину и убираю утяжеление ударника до 2 г, с целью убрать перерасход со2. Но, делаю это редко. В основном, пользуюсь длинным стволом. Для него и делал моды...
Can I use 1.2mm spring thickness. Can't find 1mm springs
You can just be careful of going to strong or you will make the trigger not very nice to use
@@jeansandmyshirt Yes, you can use 1.2 mm wire diameter but should stick to lenght of 75 mm for the pistol and 80 mm for the carbine kit.
Hi Tyrone, I'm doing this today.
I dont have a chrono... How much extra fps should I expect to get?
Usually about 5-10% extra. Let me know how it goes I am sure you'll be happy 😉
@@African-Budget-Pellet-Gunner Thanks, my gun shop said I can use their chrono on Wednesday, I'll do a few shots before and after ✌️👍
@@dudestyle01 How'd it go?
@@ultimatebjj I've not had a chance to chrono it tbh
boa tarde, comprei uma a cerca de 1 mes. pergunta : agora consigo quantos tiros por botija de co2? cumprimentos, aqui de Portugal.
I am sure you are enjoying your CP2, you can expect to get about 40shots on 1 co2 capsule
I believe the Bandit & the Stormrider(s) have these same mechanics.I just purchased a Stormrider G2 (.22) & i don't think i'm getting the 900ish (14-16 gr) fps i was hoping for.
@Damon Le Gall congrats on the new stormrider. Have you got a chronograph, what do you think you are getting from your stormrider. Where do you live? Some countries only come out in sub 12fpe and in a 22 that is less than 600fps
I live in California. No chrony. Shot a book both with the Storm and anew break barrel of normal power. Both guns in .22 went roughly the same depth so I don’t know if the breaker is still dieseling or if the Storm is just a little over 800 fps. It's going to take some time to break them both in as I don’t have a backyard and have to drive almost 3 hours to dispersed lands where I can shoot books.
@Damon Le Gall my PR900 came out producing about 25fpe, at 800fps with 14.5gr pellets I suspect you will be around 20fpe which is a little lower than normal. Is your stormrider unregulated still? I think you might have a small leak on your barrel seals(o-rings) or your rifle came out with a smaller transfer port.
@@African-Budget-Pellet-Gunner Hmmm, I think I should get a chronograph. Thank you for the advise. I like your videos.
You're welcome keep us in the loop for your adventures
Tyrone. With my chaser I removed The screw that holds the plug in the back in for the hammer spring. And that plug will not budge. I have tried heat Pliers etc. even with the screw out it will not budge. Have you heard of this before? Help!
Hi @Shawn Sullivan yes I have run into this problem before, check out the video where I show the best way to remove it.
ua-cam.com/video/L3UF0L7Yk6k/v-deo.html
Hi, so I don't know where to put this comment on all your videos. What do the think the upper/extreme performance limit is on a modified 5.5mm CP2.
Wouldn't want to be you right now.
I think the most fpe from a .22 without risking improper operation is around 11fpe. That is around 575fps with a 15gr pellet. The trick is also to get everything balanced and not working against each other
I’d suggest buying a spring of the same size, just a sturdier built one. I have the chaser and I’d just spend the money on a better spring.
That will definitely have the same effect. Thanks for sharing your insights
@@African-Budget-Pellet-Gunner no problem at all, good channel otherwise keep up the work
Is it possible to purchase upgrade springs in South Africa?
Most probably but I haven't had any special springs made here in South Africa
Nice video brother🇮🇩🇮🇩🇮🇩🇮🇩
Thanks glad you enjoyed it
Before you stretch the spring how many fps vs after ?
From a stock standard Rifle you should get between 6-10% fps increase when stretched to 90mm
Dear Tyrone , in this video , you have done one modification by stretching the hammer spring and you get over 800fps. But in your previous video (3 ways to increase fps on cp2) , you have done the hammer spring stretching plus add in spacers and also the valve spring weakening , and you only get 740fps . I noticed that you were using 7.5 grains pellet in both situations. Why more modificatons but less power ?😅
Btw , could you tell us the size of the hole in your cp2 transfer port ? Will you consider enlarging the transfer port hole in your next modification ? 😄🙏 Thanks for your hard work !
@K Lee you are very observant but there is a simple answer. When I did the spring stretch video the spacers were still in. In the older video 3 ways to increase fps the spring was only stretched to 76mm but in the spring stretch video it is stretched to 90mm. I am considering increasing the transfer port size but need to find a fool proof method as there is no spares available locally 🧐😥
@@African-Budget-Pellet-Gunner Thanks Tyrone ! That answered my question. 😄
Looking forward to see your next video ! 🙏😄
So I'm looking to buy this, but now confused, if I get it, do I need to do the mods in the other video first than do this spring stretch to get where your at here in this video? Also how many shots ate you getting rite here in this video for each co2
@Travis Compton well basically on mine I have done 3 mods. 1 insert an 8mm spacer, this will give you around 10% fps increase and 25% loss in shot count. 2 stretch spring to 90mm that gives about 10%fps increase and a shot count of about 20 per capsule left. The 3rd upgrade is more permanent and not reversable and would probably leave you at around 750fps with an 8gr pellet in 177. A final shot count of a out 15 shots.
Hope this helps with your decision
@@African-Budget-Pellet-Gunner thank you, it does help, I think I'm going to buy it, and do the mods, think I'm also going to buy the umarex fusion 2 also. I just can't decide between the two
Quanti joule arriva allungando la molla? Soprattutto quanti tiri utili con una bomboletta?
About 10% fps increase and 25% loss in shot count
Hello,
How large must be the 8mm Spacer?
Thanks for answer
The OD of the spacer should be 10mm and thickness can vary from 4-8mm
@@African-Budget-Pellet-Gunner which material can i use? Plastik or Aluminium?
You can use any material, I like the rubber because it tends to absorb a little bit of the hammer bounce
Please show us HOW to to with this gun Diana Trailscout CO2 Air Rifle
Hi, sorry I don’t have a Diana trailscout but if you check on UA-cam for CR600 vids it is very similar to the trailscout
@@African-Budget-Pellet-Gunner please send mr the link :)
El muelle al cargar no se comprime del todo,por lo tanto no da su máximo de fuerza,,,estirar el muelle es dañarlo,,,en mi caso no lo estiré pero le añadí un tubito de cobre de unos dos centímetros,el muelle ahora se comprime a tope y saco 270 ms,,,un saludo
Thanks for the insight
Bonjour détendre le ressort fait gagné combien de joule merci
The spring stretched to 90mm should give about 10%fps increase
How many shots are you getting after the mod?
Mine went down to about 30 shots
Was the trigger pull still acceptable?
Yes, with the stretched spring it is still pretty good, with a heavier hammer spring it messes the trigger up a little
It is easier to insert washers in series with the spring.
You can do that as well, I have an earlier video showing that
Great way to break off the already weak cocking bolt.
It is a weak point but just stretching shouldn't cause any harm but you could insert spacers into the hammer instead if you wanted a quick uncomplicated mod
I think the cocking bolt failure was probably from the owner being overly enthusiastic and slamming the bolt closed too hard.
@Bob_Adkins or putting in a much heavier hammer spring
hi, i wish to decrease my fps, and gain a higher shot count, as i'm staying with the short barrel, since we know this gun was designed and optimized for the longer barrel, the short one wastes
The best way to do this is to make the transfer port smaller 2-2.5mm will decrease fps and increase shot count
If I only modify the spring and don't put the 8mm rubber seal, how much fps can I get?
If you stretch the spring or repla e it with a longer you should get between 5-10% increase and most probably you will loose about 20-25% shot count. The spacer is the better option though as it won't interfere with your trigger as much
@@African-Budget-Pellet-Gunner spacer+spring extension?
Difficult to say it might need some other mods to see the full benefit
@@African-Budget-Pellet-Gunner Thank you!
You're welcome hope it makes your decision easier
where is the best place to get Artemis CP2 parts in South Africa?
Hi Dorian, it is a real challenge to get parts in South Africa, the best recommendation I can give is to contact Gareth at Neonsales.co.za he has helped me plenty in the past
Hi Tyrone thanks fir the great informative videos! Recently bought my cp2 in .22cal ! Wish to try that mod of yours ! I am a machinist by trade and would preps at a exact size machined spacer for that spring. U think it would achieve the same increase in fps and joules ie using a 15mm long spacer! Best placed in front or back of spring? Furthermore have u been able to source the little O-ring seals ie the little brown one that goes in the breech and the two thjn black ones that go one the outside of the barrel end?
Kind regards and best wishes for 2024
Mark Ellis
East london
Hi Mark Thanks for taking the time to leave a comment. I don't believe you will be able to fit a 15mm spacer in front of the hammer spring due to the end cap having a rather long spring guide.
Stretching leads to inconsistency as the spring recompenses back to its original lenght. if you want to add strenth to a spring just add a washer or 2 that's the right way to do it
@Joseph Palugi you are correct that washers can be added I actually showed how to doit in a previous video, I have not found any inconsistencies after stretching the spring. This video was made 8months ago, I opened my CP2 up during the week and the hammer spring is still exactly the same as 8 months ago
@Tyrone Mclaren I'm a mechanical engineer, and I've never seen a spring retain its length or integrity after being stretched. The idea is good, yes, and I'm sure it helps initially, but eventually, the spring returns back to its length or very near it. Just what's know to be true based on what I've learned in schooling and practice.
Definitely all this stretching stuff you see is crap
Could try Sourcing a Longer Spring with the correct Spec' of coils for its length & just change it out!! Can always put the original one back in if you want to.
That is definitely an option, just don't go too long as it will spoil your trigger
The result is interesting. Obviously arm and discharge will be easier in this case.
@Sony Zeta Thanks for your comment. Not sure if there is a question in there. I can however tell you that if you try it you won't be disappointed. Happy shooting
@@African-Budget-Pellet-Gunner Thanks for the answer! I tried. I stretched the spring to 78mm and got +2 J. Then I stretched it to 92mm and it was the same. True one shot. I'll check it later. You have offered a weaker valve spring option. This should be checked (?). And by the way, the spring should be properly stretched - by scrolling the cylinder (nail, drill, screwdriver) perpendicularly, increasing the distance between the turns evenly.
@Sony Zeta yes you can put in a lighter valve spring see the below video for more details
ua-cam.com/video/pj5dz8F2vtI/v-deo.html
Thanks for sharing your experience, much appreciated
@@African-Budget-Pellet-Gunner I saw this video. Maybe I misunderstood the translation (My English is very weak), but you didn't change the spring in the valve, you just assumed. So you need to replace it and compare the result.
@Sony Zeta you are correct I didn't change the spring but it will most definitely add to your fps if you put in a lighter spring. I show the spring change and will be showing it in an upcoming video. You can take my word for it, you will getmore fps
The hammer cap is stuck. I removed the screw but it will not budge. Suggestions??
@Bob Albeck is this a new CP2 or an older CP2. I have heard about this before and the way it was removed was by way of a small sliding hammer on an m5 or m6 threaded rod. If I remember correctly it wasn't a tight fit but had some kind of adhesive/lock tight keeping it in place. Hope this helps you
@@African-Budget-Pellet-Gunner Thanks for responding. Love your videos. It is a new CP2. I am not sure how to do what you suggest as a fix. I tried gripping with a pliers and twisting and pulling but it only moved slightly. Afraid to full too hard.
@Bob Albeck I think what will be the easiest is for you to send me an email maybe with some pics then I can reply with pictures and the like
@@African-Budget-Pellet-Gunner I don't have your e mail address
@Bob Albeck sorry I thought I had replied with it. It is tyrone8511@gmail.com
How much fps gain did you get before
In 177 you should get your fps between 620-650 depending on conditions. In 22 you should get up to 520-540. This is using the long barrel
@@African-Budget-Pellet-Gunner sorry i meant how much fps did you gain before stretching the spring . How much fps hain do you get
@@African-Budget-Pellet-Gunner like saying before mod fps is 400 before but say for example after modification you get 425 fps thats a gain of 25 fps
In 177 you should gain between 30-50fps in 22 you should gain between 20-40fps
Is it same spring on .22? And does this decrease air rifles life time?
Good vid btw
@Esel yes I believe the 5.5mm(.22) has the same spring. I haven't had any issues with my air rifle and I shoot daily, so no. It will decrease the amount of shots you get from a co2 capsule. It will make it a little harder to load due to more tension in the spring.
@@African-Budget-Pellet-Gunner ive already done it, minę spring was exactly 70mm so i made it 81. Now rifle is noticebly stronger and my hands hurt 😂
@Esel it will definitely make a difference you should see my other video for more ways to increase your fps. Thanks for sharing your experience with us
Is that a 177 or 22 ?
My CP2 is a 177 but the mod will work on both 177 and 22
I suggest to buy a heavyer gun with more power instead of damaging the origin of the spring
Good luck finding one as inexpensive yet having the light weight, accuracy and other good attributes of the CP2/Chaser.
Couldn't have said it better myself
stronger and not stretched spring has no effect on the strength of the rifle
Stronger spring will have a similar effect to stretching the spring
If the constructor of this gun would have to provide us more power and pellet speed i think they would have done it
You don't need to mod your rifle they shoot pretty good straight out the box
Actually no! Many countries, like Sweden, have a very strict limit for how powerful air-guns are allowed to be, and this one is exactly at the limit. The various producers could easily made a lot stronger versions of their models, but then it would demand a license for buying it and they would sell a lot less...
Hello .177 or .22 ?
Mine was a 177 but you can do this to both calibers
Tank you bro 😊
I didn't get what the actual increase in FPS was.
It depends on which mods you do as some work better together with other mods. With all the mods you can expect between 10-15% fps increase with about 50% loss in shot count
Thanks!@@African-Budget-Pellet-Gunner
uhm.... But isnt the rifle CO2 powered? -If so, the pressure propels the pellet and the spring only makes the hammer hit a relaese valve.... So stretching the spring only makes the trigger harder and increse wear and abuse on the recieving valve... It won increase the muscle velocity of the pellet at all.... at best you shave micro seconds of the delay between pulling the trigger and the pellet being fired....
but by weakening the valve spring you might get a little more airpressure released that MIGHT accelerate the pellet a bit more before it leaves the barrel I guess...
-But thats just my humble guesses based on my mechanical experience and smidge of knowledge about airpressure... No way near my normal electricians ballpark...
Edit: after seeing the small increase in fps my guess is that the hammer spring normally doesn't push the valve entirely to its fully open position, wich might be a purposely calculated setting to avoid the valve being slammed open, causing wera and tear over time.
So yeah, bot tweaking tha hammer and valve springs could give a little gain in fps as you prooved... but it comes with a risk of increased wear... that might be so slight it really isnt of concern. Especially if you can fix issues youself... :)
I think you are definitely onto something, check out my video coming out next Monday. I think you and I are both mechanical in thinking
@@African-Budget-Pellet-Gunner will do tyrone. I am here because I know at age 40 are considering strongly buying this airifle... havent had one since childhood and this one has grabbed my attention... I love the whole combination idea plus i can take it places in a bag without looking like a maniac on my chopper... 😄
@@African-Budget-Pellet-Gunner P.s I'll give you a sub! Thanx for the answer!
You definitely won't be sorry if you buy the CP2. I was out of airguns for a long time and this was my first rifle back. And 14months down the line I am still using it to make UA-cam videos
@@African-Budget-Pellet-Gunner thanx again. That sort of settles my decision then!😄
So have you replaced the valve yet? Sure it's beat to death in 11 months, iffen you've shot it very much...
No have never had to replace the valve yet and this one is still in a good condition after many many shots
@@African-Budget-Pellet-Gunner Hard to believe, they usually don't last to long after that heavier slaps it open several times, expechely with the cheap crap they're built with these days...
Well the valve you see in the video is the original valve
why should the valve go down ,it just opens longer
You are 100% correct, the valve just opens a little longer
After a couple shots it will be shrunk again, buy yourself a propper longer spring.
Everything else is totally bulkshit and a placebo.
@WaschyNumber1 Thanks for taking the time to leave a comment. It actually doesn't shrink back, when I opened this rifle up again to drill out the ports the spring length was still the same
@Mafra TV check out this link, they have the spring for the PR900 which should be around 90mm long, www.gunspares.co.uk/products/25123/PR900W-/
Koi
@James Shepard Koi?
And now your gun is illegal in pistol mode!
@JPF17 I don't use it in pistol mode at all but is not illegal in South Africa
@@African-Budget-Pellet-Gunner
Sorry mate my mistake. The laws in the UK for air guns are ridiculous!
Happy shooting! 😊 👍
@JPF17 no stress I will include it in my videos going forward, I don't want to get anyone into trouble. Thanks for sharing your comment and watching the channel
@@African-Budget-Pellet-Gunner
Your welcome Tyrone. Keep safe mate. 😎👍
Uneducated procedure. Waste of time, spring memory plastic and elastic deformation to be considered.
Thanks for your comment, welcome to the channel