Hi Josh, I had the opportunity to speak at length with the ISSF 50 meter prone world record holder about his ammo selection. It was interesting because he wanted ammo that could hold a tight group but if there’s an occasional flyer he was OK with that because with decimal scoring he could make up for the flyer with high value 10.9 shots. Great video my friend. I too am in search of the perfect lot.
Thank you for the return information about not using a tuner when competing in the PRS and NRL style of shooting. Those two disciplines appear to be a good challenge. My long distance rimfire shooting is with California ground squirrels. My Remington 541-S is quite accurate and will regularly kill squirrels out to 100 yards. I have killed many at a distance of more than 100 yards but those are difficult shots when I don’t know the exact distance and most of the time they don’t give me a second shot. Many of the squirrels I shoot at between 100 and 200 yards live to see another day unless I use one of my center fire rifles. Thanks again for the informative videos. JD
When I bought my CZ 457 MTR 20", I tested Eley RWS Lapua and SK . Out of all the different ammos SK Rifle Match was the only one to shoot sub MOA out to 100 meters. It's sometimes difficult to find, but it's the only ammo that I shoot in competition.
Have you thought about using a tuner on your rifle? Tuners will make a difference with good ammunition. I use a Harrell’s tuner on all three of my Benchrest rimfire rifles and brass tuners I made for my sporter rimfire rifles. Properly tuned they will tune out small variations in velocity and tighten your groups. They will not tune out a bad bullet/cartridge. Two of the contributors to barrel harmonics are hammer strike and bullet rotation as it travels down the barrel. The barrel doesn’t move up and down like a diving board but more of a rotational movement, this evident if you shoot groups at every full rotation of the tuner which is .025. You will see a change in the group location with each full rotation. The tightest groups seem to be in the same location on the target. You might find more than one tuner setting that group well. There is usually only one sweet spot. Instead of shooting groups at every full rotation, I now start at the middle setting of 250 out of the .500, ½” total amount of adjustment. If the groups are stringing I will lengthening the tuner and if the groups are round I will shorten the tuner. Most times you only need to move the settings 5 to 10 thousands of an inch which is 5 to 10 clicks during your initial tuning. During an ARA match in my underground shooting range I will sometimes make a .001 adjustment, 1 click to tighten up the groups. It seems that there will always be flyers in a box of ammunition and some boxes will have a lot of big flyers. (Exasperating) Thank you for the good and informative videos. Contact me if you would like to chat. Jim
Hey Jim, ive ran a few tuners and from my findings for prs and nrl style shooting they dont work well for me. I will say tuners do work and have improved my groups. The issues i see is that rimfire is sensitive to environmentals etc. So as conditions change from 7am (when we zero check) to 2pm the tuner settings were no longer always the right setting. And as we cant check the gun or shoot sighters during a match i found a straight taper barrel with no tuner to be more consistent.
My current lot is in the 1100-1109 range on the chrono, SD in the high 3’s and 4’s and the ES are in the high 9’s to 13’s… Too bad I’m almost out of it.
I always Lot test at 100 yds. Ammo must group 1/2 moa or better. I have pretty much settled on Eley SABRP. Unfortunately Killough is out. I then test at 200 yds.
I'm pretty new to precision 22, but it seems to me that I need warm and cold weather lots. I found a lot for 45 degrees and colder and 55 degrees and warmer.
Hey Josh , thank you for the excellent demo. I noticed you just mentioned the sds and es on the first two lots, but did not say average chrono velocity . If you have that info , please share . Thank you!
Josh, I have an idea I think Iv'e mentioned this a ways back but if you watch your videos when you go from one target to another the poi usually changes not much but it does I always wonder if there is a way to lock your rifle completely down so there's no way it moves and it won't matter if your shooting at a target per say just a sheet of paper will do shoot five shots then change the paper without moving the rifle and shoot five more then shoot it the way you normally do off the bipod I wonder if you'll see a difference ? I'm not into this type of shooting but obviously interested in the accuracy aspect so I enjoy your knowledge and testing good watching content !!
Hi Josh, great video and thanks for it. Question: What was the published velocity on the boxes and was your observed velocity of 1070 about 30 fps higher? I ask because my experience is Eley’s published velocity is never with +- 5 fps of measured velocity with Chronograph. Yet somehow Lapua usually is.
@@PursuitofAccuracy They test with factory length barrels from Anschutz, Walther and Feinwerkbau. 660mm(26in), 690mm(27in) and 670mm (26in). If your barrel is shorter than that wouldn't you have expected velocities lower than what Eley published?
Wonder if Humidity, barometric pressure, temperature, along with wind, can have enough effect on bullet flight, and velocity, and if it can? even ammo of the same lot can shoot different on any given day?
You do see group variance day to day. Its nearly impossible to account for it all. Thats why i use the chrono data and the avg's of the groups to try and decide on a lot. Ive found good ammo doesnt suddenly turn to crap because of changes. It may fluctuate a .1 group size day to day but generally if its good sd, es, and groups it stays consistently good.
Those 100 yard groups are a good example of why you shouldn't trust 3 or even 5 shot groups to give you a true picture of how your gun/load is performing. Small sample group vary a lot.
Have you ever taken in account the temperature and humidity? Also, what about single fee ? I know you shoot with a magazine, but test both, with and without magazine ? One last thing, what about a blind test, where someone else loads the magazine or single round keeping track of the lots ? That will take out all bisas , if any . Thanks for all you do, i appreciate all that you do.
I do take in account temp, humidity, and DA to try and see when the gun shoots the best. I dont really put much emphasis on it because i cant choose conditions on match day. I dont try and single feed, i test the gun the same way i will shoot it at matches etc. I even zero off a bag with no bipod because 90% of my shots are off a bag and not on a bipod
This is the part of precision shooting that gives me the most angst. First how do you pick a good speed ? If I have two (2) variables to work with, speed and lots, did I get a poor lot or my rifle does not like the speed? Most of the time I feel like I am at the craps table rolling the dice. Josh, anything words of wisdom would greatly be appreciated.
Typically my rifles tend to shoot ammo's at a certain speed better than others. Id be more worried about accuracy and the sd and es. Im using 50 and 100 yard accuracy as the 1st pass and then the sd and es to make a final decision
So not to sound as fence as I am, shoot a number of speeds then lot pick the best at that speed. Correct?? Thank you for all you videos (even if you have cost me a bugger ton of money)
Quick question for ya buddy. I recently lot tested Eley Match from Killough. Lot I chose listed 1066 fps. Later, I chrono'd at 1139 with SD of 5. Do you think being SS will give me issues?
@@markhall930 I try to avoid it but I haven't seen any real issues from it being SS. It's likely to change speed a little as weather fluctuates as well. Ideally I'd find something around 1100-1120
I realize this is off topic, I noticed in one of your videos that there is a shooter in your house that is left handed, Do you know of anyone making left handed chassis for the CZ457?
.22 inches of pure love! Thanks for the test video, Josh. Your videos have made precision rimfire shooting more approachable and understandable
Thanks brother
Hi Josh,
I had the opportunity to speak at length with the ISSF 50 meter prone world record holder about his ammo selection. It was interesting because he wanted ammo that could hold a tight group but if there’s an occasional flyer he was OK with that because with decimal scoring he could make up for the flyer with high value 10.9 shots.
Great video my friend. I too am in search of the perfect lot.
I've recently been binge watching your channel , great content ! Great info as well .
Thanks for watching!
just got myself a chrono so appreciated seeing your profam AND WHAT YOUR LOOKING FOR WHICH WILL HELP ME GET MORE OUT OF MY LEARNING WITH A CHRONO
Thank you for the return information about not using a tuner when competing in the PRS and NRL style of shooting. Those two disciplines appear to be a good challenge.
My long distance rimfire shooting is with California ground squirrels. My Remington 541-S is quite accurate and will regularly kill squirrels out to 100 yards. I have killed many at a distance of more than 100 yards but those are difficult shots when I don’t know the exact distance and most of the time they don’t give me a second shot. Many of the squirrels I shoot at between 100 and 200 yards live to see another day unless I use one of my center fire rifles.
Thanks again for the informative videos.
JD
Thanks Josh, your insight is always extremely beneficial.
Good video. The 10 shot groups at 100 is where it’s at. I don’t really bother with 50 much. Thanks for putting this out.
When I bought my CZ 457 MTR 20", I tested Eley RWS Lapua and SK . Out of all the different ammos SK Rifle Match was the only one to shoot sub MOA out to 100 meters. It's sometimes difficult to find, but it's the only ammo that I shoot in competition.
Every barrels got its favorites for sure
Have you thought about using a tuner on your rifle? Tuners will make a difference with good ammunition. I use a Harrell’s tuner on all three of my Benchrest rimfire rifles and brass tuners I made for my sporter rimfire rifles.
Properly tuned they will tune out small variations in velocity and tighten your groups. They will not tune out a bad bullet/cartridge. Two of the contributors to barrel harmonics are hammer strike and bullet rotation as it travels down the barrel. The barrel doesn’t move up and down like a diving board but more of a rotational movement, this evident if you shoot groups at every full rotation of the tuner which is .025. You will see a change in the group location with each full rotation. The tightest groups seem to be in the same location on the target. You might find more than one tuner setting that group well. There is usually only one sweet spot.
Instead of shooting groups at every full rotation, I now start at the middle setting of 250 out of the .500, ½” total amount of adjustment.
If the groups are stringing I will lengthening the tuner and if the groups are round I will shorten the tuner. Most times you only need to move the settings 5 to 10 thousands of an inch which is 5 to 10 clicks during your initial tuning.
During an ARA match in my underground shooting range I will sometimes make a .001 adjustment, 1 click to tighten up the groups. It seems that there will always be flyers in a box of ammunition and some boxes will have a lot of big flyers. (Exasperating)
Thank you for the good and informative videos.
Contact me if you would like to chat.
Jim
Hey Jim, ive ran a few tuners and from my findings for prs and nrl style shooting they dont work well for me.
I will say tuners do work and have improved my groups.
The issues i see is that rimfire is sensitive to environmentals etc.
So as conditions change from 7am (when we zero check) to 2pm the tuner settings were no longer always the right setting.
And as we cant check the gun or shoot sighters during a match i found a straight taper barrel with no tuner to be more consistent.
Thanks man!! I was just about to do the same thing lol I was looking on kilo and was gonna order a brick worth of different lots and test em.
Thanks for explaining and demonstrating your lot test process... interesting stuff, and food for thought. Much appreciated Josh, this is the way😅
This is the way 😁
Thanks for the tip on aura. Interesting.
I appreciate your effort to achieve excellence
I love match when the mean velocity on the box is 1060-1070.
My current lot is in the 1100-1109 range on the chrono, SD in the high 3’s and 4’s and the ES are in the high 9’s to 13’s…
Too bad I’m almost out of it.
Yeah thats where i find the most luck too
I always Lot test at 100 yds. Ammo must group 1/2 moa or better. I have pretty much settled on Eley SABRP. Unfortunately Killough is out. I then test at 200 yds.
I'm pretty new to precision 22, but it seems to me that I need warm and cold weather lots. I found a lot for 45 degrees and colder and 55 degrees and warmer.
That can be the case for sure
New to rimfire, how difficult is it to put a shim on the bolt, this is new to me. Great channel you have.
Thank you for this.
Hey Josh , thank you for the excellent demo. I noticed you just mentioned the sds and es on the first two lots, but did not say average chrono velocity . If you have that info , please share . Thank you!
All 3 averaged around 1070.
I've found SK has the best results for my cz, and eley for my Kidd barrel 10/22.
It would great for us newbies to 22lr bench rest. If you could put a list of links to equipment used.
When i get the time i will update the website with all my current gear and link it in the video descriptions
Josh, have you seen ultimate reloader interview with Brian Litz on 22 caliber ballistics pretty informative
Havent watched it yet
Thank for the sharing this. One question I have is why mess with Eley Match and why not jump to Eley Tenex?
Ive always had good success with it at the price point
a tuner should tighten those groups up
Before PRS/NRL benchresters would order 50 rds of every lot, test and then order a case of the best lot for your barrel. Those days are long gone 😢
Josh, I have an idea I think Iv'e mentioned this a ways back but if you watch your videos when you go from one target to another the poi usually changes not much but it does I always wonder if there is a way to lock your rifle completely down so there's no way it moves and it won't matter if your shooting at a target per say just a sheet of paper will do shoot five shots then change the paper without moving the rifle and shoot five more then shoot it the way you normally do off the bipod I wonder if you'll see a difference ? I'm not into this type of shooting but obviously interested in the accuracy aspect so I enjoy your knowledge and testing good watching content !!
Ive played around with the idea of something that locks the rifle into the bench
@@PursuitofAccuracy A rifle ransom rest ?
I'll try to come up with an idea shouldn't be too hard to figure out.
You had some weather reports on some of those groups.
Lol
When testing ammo do you clean the barrel in between different ammo? I am new to match grade 22. It very greasy.
Hi Josh, great video and thanks for it. Question: What was the published velocity on the boxes and was your observed velocity of 1070 about 30 fps higher? I ask because my experience is Eley’s published velocity is never with +- 5 fps of measured velocity with Chronograph. Yet somehow Lapua usually is.
1041, 1043, and 1051
That is because eley tests with much longer barrels that are more common on rifles used in the UK.
@@PursuitofAccuracy They test with factory length barrels from Anschutz, Walther and Feinwerkbau. 660mm(26in), 690mm(27in) and 670mm (26in). If your barrel is shorter than that wouldn't you have expected velocities lower than what Eley published?
@@maikata329 peak mv happens around 18-20" of barrel then its dragging and reducing velocity after that.
Did you see that Christensen Arms is releasing their MPR in 22lr, 22mag and 17hmr
I did not
Have you listened to Hornady's Podcast episodes 50 & 52? I’m interested in your thoughts on group size….
I havent, will see if i can find them
Wonder if Humidity, barometric pressure, temperature, along with wind, can have enough effect on bullet flight, and velocity, and if it can? even ammo of the same lot can shoot different on any given day?
for sure!!
You do see group variance day to day. Its nearly impossible to account for it all.
Thats why i use the chrono data and the avg's of the groups to try and decide on a lot.
Ive found good ammo doesnt suddenly turn to crap because of changes. It may fluctuate a .1 group size day to day but generally if its good sd, es, and groups it stays consistently good.
Those 100 yard groups are a good example of why you shouldn't trust 3 or even 5 shot groups to give you a true picture of how your gun/load is performing. Small sample group vary a lot.
What is the name of the shop that is getting in the match ammunition?
In the first 100 yd group, what is the explanation for the result, vs the subsequent two groups? Shooter? Wind? Or?
The extreme spread of velocity i was talking about.
The sd was not bad but the extreme spread was high indicating it had some outliers on velocity
Have you ever taken in account the temperature and humidity? Also, what about single fee ? I know you shoot with a magazine, but test both, with and without magazine ? One last thing, what about a blind test, where someone else loads the magazine or single round keeping track of the lots ? That will take out all bisas , if any .
Thanks for all you do, i appreciate all that you do.
I do take in account temp, humidity, and DA to try and see when the gun shoots the best. I dont really put much emphasis on it because i cant choose conditions on match day.
I dont try and single feed, i test the gun the same way i will shoot it at matches etc.
I even zero off a bag with no bipod because 90% of my shots are off a bag and not on a bipod
@@PursuitofAccuracy thank you keep up the good work.
This is the part of precision shooting that gives me the most angst. First how do you pick a good speed ? If I have two (2) variables to work with, speed and lots, did I get a poor lot or my rifle does not like the speed? Most of the time I feel like I am at the craps table rolling the dice. Josh, anything words of wisdom would greatly be appreciated.
Typically my rifles tend to shoot ammo's at a certain speed better than others.
Id be more worried about accuracy and the sd and es.
Im using 50 and 100 yard accuracy as the 1st pass and then the sd and es to make a final decision
So not to sound as fence as I am, shoot a number of speeds then lot pick the best at that speed. Correct?? Thank you for all you videos (even if you have cost me a bugger ton of money)
Hello when you do lot test do you look for a certain machine it came off of or speed
Neither honestly
@@PursuitofAccuracy so when you run out of a lot you retest and buy a brick or case of what shoots best?
@@ovenman991 yeah. A case if i can swing it financially
What SD an ES would you like to see for shooting matches
3-6 sd and 10-15 es
At how many shots
@@mikalvesper1772 10-20
Quick question for ya buddy. I recently lot tested Eley Match from Killough. Lot I chose listed 1066 fps. Later, I chrono'd at 1139 with SD of 5. Do you think being SS will give me issues?
@@markhall930 I try to avoid it but I haven't seen any real issues from it being SS. It's likely to change speed a little as weather fluctuates as well.
Ideally I'd find something around 1100-1120
What range of Standard Deviation do you considered good?
3-6
I have tried enough eley for me to never buy any ever again.....more for everyone else....lol
You’re give $3500 for a rimfire. You need this to shoot 50 yards up to 400 with accuracy.
What is your set up?
Another bonus of precision pistol shooting-the scoring rings are so big in the American sports that lot testing is completely irrelevant.
Possible shift is due to cold barrel/ bees wax is cold ?
Could be but those groups were shot with very little down time group to group
I cant get eley to extract reliably in my CZ457....
Factory barrel?
GR8 VIDEO THNX
Appreciate ya
I realize this is off topic, I noticed in one of your videos that there is a shooter in your house that is left handed, Do you know of anyone making left handed chassis for the CZ457?
I dont, sorry
PDC Custom
What bipod and attachment are you using?
Its an atlas bipod with an arca adapter from rrs
@@PursuitofAccuracy Target height aside, do you feel there is an advantage to 45 vs 90 on the bipod?
@@fenomeno71 i dont, just the easiest eay for me to adjust the height.
good info.
Hi, what are the batch numbers and speeds. cheers
01315 1041
01313 1043
06319 1051
Why was the bipod setup changed ?
The 100 yard target is higher
Great video... So the speed on the box is not actual?
“Mortgage the house.” Isn’t that the truth? When you find that one group that has a good group, sd, and es. Just feels like you have to have it ALL.
Haha yes sir
What scope is on that rifle?
Thats the burris xtr pro
2 thousand dollars
@@tremaineangus6474 yup
🔥