Does Rifling Work In Nerf?
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- Опубліковано 21 жов 2024
- Does rifling work in Nerf?
In this video I test no rifling, BlasterTech Mk2 SCAR and LegoDEI Acuratio with my 250ft/s Xzeus 2 Nerf Blaster firing at a distance of 100ft and plotting the impact points to compare groupings.
BlasterTech Mk2 SCAR: www.blastertec...
LegoDEI Acuratio: www.etsy.com/a...
Time stamps thanks to Hardy (pinned comment)
No Rifling Acc darts 4:08
Worker Gen3 darts 6:25
BlasterTech MK2 (String-based rifling attachment) Acc darts 9:05
Worker Gen3 darts 11:38
LegoDEI Acuratio (completely 3D-printed rifling attachment) Acc darts 15:10
Worker Gen3 darts 17:48
Darts Grouping Comparisons Worker G3 (No Rifling) vs Acc BT Mk2 Rifling 9:11
Worker G3 (No Rifling) vs Acc BT Mk2 Rifling vs Acc No Rifling 9:15
Worker G3 BT Mk2 Rifling vs Acc BT Mk2 Rifling 11:42
Worker G3 BT Mk2 Rifling vs Acc BT Mk2 Rifling vs Acc LegoDEI Rifling 15:22
Acc LegoDEI Rifling vs Worker G3 LegoDEI Rifling 17:59
Worker G3 BT Mk2 Rifling vs Acc BT Mk2 Rifling vs Acc LegoDEI Rifling vs Worker G3 LegoDEI Rifling 18:02
OVERALL 18:26
Ahh... a question finally answered! Thanks for this video! Below are the time stamp to skip when I, or anyone if it's matter, to use as points of reference in the future re-watch! =D
No Rifling
Acc darts 4:08
Worker Gen3 darts 6:25
BlasterTech MK2 (String-based rifling attachment)
Acc darts 9:05
Worker Gen3 darts 11:38
LegoDEI Acuratio (completely 3D-printed rifling attachment)
Acc darts 15:10
Worker Gen3 darts 17:48
Darts Grouping Comparisons
Worker G3 (No Rifling) vs Acc BT Mk2 Rifling 9:11
Worker G3 (No Rifling) vs Acc BT Mk2 Rifling vs Acc No Rifling 9:15
Worker G3 BT Mk2 Rifling vs Acc BT Mk2 Rifling 11:42
Worker G3 BT Mk2 Rifling vs Acc BT Mk2 Rifling vs Acc LegoDEI Rifling 15:22
Acc LegoDEI Rifling vs Worker G3 LegoDEI Rifling 17:59
Worker G3 BT Mk2 Rifling vs Acc BT Mk2 Rifling vs Acc LegoDEI Rifling vs Worker G3 LegoDEI Rifling 18:02
OVERALL 18:26
Thanks for doing this. Should help with people who just want the results!
You have done gods work my boy
Does rifling work in nerf?
Short awnser: yes
Long awnser: yes
No...
Short answer: yes
Long answer: yeah
YEEEAAAAAAAHHHHHHH BOOOOIIIIIIIIIII
@@Bean41 no no
Short answer: ye
Long answer: yeah
Prixius Necrolance no no no
Short Answer: Si
Long Answer: Yes it does
Short answer: ye
Long answer: YEEEEEEEEEEEESSSSSSSSSS
Conclusion - can not use ACCs without a scar. Too much risk of hitting innocent doggers grazing in the backyard.
Yeah I wouldn't even consider pulling the trigger with ACC's if doggers were grazing. With other darts I knew they were safe though.
Don’t play nerf. Haven’t since I was 13. But I woke up in a cold sweat wondering why tf my nerf guns as a kid never had rifled barrels and if it would even make a difference
a lot do, but they don't shoot hard enough and the barrels aren't tight enough to make a difference.
@@VVarlock_ nah they just have grooves. the grooves need to be curved to give the dart spin
@@commodorjack8633 when was the last time you had your hands on a nerf gun that had those grooves? I have four right next to me rn and all four have rifled grooves, albeit a very gentle curve
Nerf makes blaster with rifling?
I don’t think it was a official nerf blaster
Maybe the blaster was modded or not a nerf blaster like a different company made it like buzbee
Some will still say no, for some reason... Great video.
Not surprised that the blastertech SCAR came out the winner. Well worth the extra dollars... why spend so much money on a blaster only to cheap out on the most important aspect? (accuracy)
Well said mate! Also Dean and the guys from BlasterTech are such amazing people that always go the extra mile to help out with all your needs
If long distance accuracy is your only measure of having fun in a Nerf game, then yes, by all means spend lots of money on making an "accurate" blaster. However there are other metrics by which fun is measured. In the real world, most people don't use sniper rifles on a shooting range and most soldiers don't carry them either. Nerf has it's blaster counterparts to pistols, SMGs, assault rifles, light and heavy machine guns because not everyone wants to sniper from afar.
I love how your dog was just wandering around without a care in the world
Also that gun os incredibly accurate
Great video. I have the Acuratio and stick with it over scar for one reason, consistency of setup. From a cold shot, I don’t have to fine tune at all. With the variables of string and twists, it can lead to you constantly adjusting.I love the stick on and shoot principle of the acuratio.
It is amazing how much spin stabilization is achieved with just a 6 inch riffled choke. I can't imagine full riffled barrels would do much more.
In fact, a full-length one in the whole barrel would probably worsen the performance since this is giving it that sudden spin at the end. Through the whole barrel would likely just slow it down.
@@HappyMan0203 you'd need a longer barel to give the dart more time to accelerate and you'd need a bigger piston to supply more pressurized air for longer in order to support it.
Any way you could build or otherwise come into possession of a Merlyn? I would love to see a direct comparison between one of those and the venerable BlasterTECH Mk II.
Last I heard, Chris Cartaya was planning to send me one. Not sure when though.
friendly critic: you could have edited out the ammo loading sequences. It would have been much easier to watch that way.
Watch at 2x speed lol
@@dgkway 🤣 good idea!
It actually increased accuracy but it took range down with it a bit. I think that when the dart transitions from the smooth part of the barrel to the rifling section there's a little bit of friction on the dart so maybe smoothen out that transition a bit and you've got yourself a masterpiece. I would make the entire barrel have rifling! Start out with less and progressively have mite aggressive towards the muzzle. Like a real gun.
Been wondering about this topic often. Thanks man
I've been using some iteration of a scar fo so long now, i had fogotten how bad 'no scar' can be. Thanks for the insight. Im going to get a mk3 Acuratio and compare to the longer mk2 and mk1 that i already have.
I really enjoyed watching the spin of the Darts due to the rifling
Amazing how much somthing so simple can make such a big diffrence
Great video mate!! Finally a clip that answers the most asked question "do these strings work? That's hard to believe
wit a toy!".
Just got my first scar from Out Of Darts today and immediately noticed the difference - beautiful weapon btw!!
great video as per usual, personally ive used both scars on my 180 fps kronomag but the Acuratio was the longer version which suited the kronomags lower fps , the BT mk2 worked better with higher fps blasters (200+) , but we both can agree that ACCs just suck badly
Read a forum just yesterday were ppl were really dismissive about rifling, saying that there is no merit to it. I have never fired a Nerf gun so I completely belived them. I'm just getting into nerf and 3D printing (my new office seems to be too, so I have to prepare) and everyone who says rifling isn't a thing in nerf should watch this video.
It's been a long time using nerf/toy gun and I've never believed rifled barrel gun exist untill this video existed
I googled this question and this video came up. Awesome and answers my question.
I cant bring myself to spend money on shipping for a BlasterTech (I want one) But I did order couple Accuratio scars today for different barrel diameters. Gonna compare it with the Worker and my homemade scars. Great and informative review as always!
The Acuratio should perform well for you. A lot better than having nothing.
Great comparison! I've been waiting for something like this.
Great info Bradley...thank you.
Broooo anyone mention how SUPER AMAZING RELOADING SOUNDS! 🔥 🔥
the zinc blaster has a bcar to do rifling, and it improved the accuracy so much, and with a red dot on top its super easy to aim and always hits dead on target. it does lower range, but not to the point where it actually matters too much, it still shoots very hard and fast.
I never noticed this until all I heard all the pinging while you were shooting with no rifling, but are all your fences and sheds built out of metal over there? Cause that seems like I'd be a little on the expensive side lmao
As always man great video!
Same here where I live in the US. Everyone used metal fences, they just tend to hold up better with the inconsistent weather here I guess
The majority of new suburban fences tend to be colourbond style metal. Been a while since I've seen wooden fencing in new builds. Tin sheds have been common for well over 100 years.
As allways such a great video and very sientific and very help ful
Ive also notice that there was no worker "scar" and i find that i can get 30cm groupings out of that woth gen 3 workers and my 250 fps longshot with full brass breach and a 16.5 kg nerf turf spring
Is there a measurable range or fps difference between the solid and string rifling? I would expect velocity changes between the 1/8 and 1/4 twist variations, but I would like to know if the more precise mk2 is making significant sacrifices in other departments to achieve those numbers.
Solid reduces velocity a little more than string does but you really wouldn't notice either because the dart should fly the same distance, if not further being more stable.
@@BradleyPhillipsYT Interesting. I have an older Worker attachment but it might be time for the upgrade to Blastertech. Porting also seems to have some promising research behind it. I'm still in the design phase of my next project and your videos have been invaluable in dart selection and rifling tests. Thank you.
Very impressive! Great video!
9:15 you could do some legit science with that graph
I think he just did.
No defined hypothesis, stated variables or measured outcomes. I've been trying to convince him that if he used a stand to aim the blaster at a Centrepoint (ensuring no movement as a result of human error) and then measured the distance of each hit from the Centrepoint you could gain an average variance measure which I think would be handy data.
Hey Bradley. Have you tried the Worker or the MonkeeMods rifling muzzles? If yes, what is your opinion comparing to the SCAR MK2?
The type of your bullets depend if it hits or misses the target. It depends with the air, the bullet, rifling, and the gun.
Not to mention the scope and the ability of the shooter. By their very nature, Nerf darts of any description aren't ideal for long range accuracy. 100 feet isn't really very far, and a reasonably proficient archer or slingshot user would have no problem reaching that target with relatively low end equipment, as opposed to the relatively expensive, high end blaster Bradley was using.
Does the rifled extensions work with a K26? I plan to design a sniper rifle that actually has distance behind it, and uses a properly made optic scope for actual firearms that uses Picatinny rails
@@Samuel-yl9yo What about the string rifling one?
@@Samuel-yl9yo Id go for both
Considering I have a precision shooting blaster, and a dynamic full auto one
Do you think a scar barrel could be made to work with rival rounds? Or does that just not work?
Being round I'd say all you can really do is use hopup. Otherwise airsoft would use rifling.
The problem with rival rounds is imparting any sort of spin onto them makes them subject to the Magnus effect, which might actually reduce accuracy
TheDaedalus07 But then how come musketballs could be used with rifles back in the day?
@@FoundWanting970 Maybe the weight, but I do know rival rounds are spin out when traveling too fast.
Spherical projectiles doesn't need to rifle when being shot out of a barrel, in the event that it does, the trajectory of the projectile depends on how it was rifled. It means that if a rival round was rifled clockwise, it may turn to the right (from the shooter's perspective) and to the left when rifled in a counter-clockwise manner. Rifling is only useful in cylindrical projectiles like a dart or a bullet. A hop up mechanism, however is used by sphere projectiles to increase range as in airsoft, rival rounds etc...
Very nice vid as always
haha the dog "whachu doin over here....oh....nah iim out" XD
Thank you Bradley, very cool!
Why not make full rifled barrels? Would that not be better and more stable than just a little 3d printed attachment?
Too much friction
What minimum fps would you recommend your blaster hits to even start considering a SCAR?
130
Now all you need to do to turn down the volume on the critics (cause you'll never get rid of all of them) is to make a ported brass extension to compare directly against the blaster tech scar to see if venting alone makes as much of a difference.
Spectre is working on an entire ported barrel which in the future I look forward to testing
@@BradleyPhillipsYT Yeah man I seen that on his facebook it looks nice. Makes me want to try and fashion one outa brass. Looking forwards to your testing :)
this has already been done. Using two 3d printed attachments that are the same in every which way with the only variability being straight grooves or sprialed grooves (rifling), we see a massive accuracy improvement. Data collected over 50 shots each. Both have muzzle brakes (ported). www.reddit.com/r/Nerf/comments/aojy7d/rifling_works_and_worker_darts/
I didn't hear you say in the video so sorry if you did, but how many clicks on the blasterTECH where you using/do you generally use??
4 clicks from straight, otherwise known as 1/4 rotation
If it's strictly the rifling that's improving the accuracy, then shouldn't the same principle be applicable with flywheelers? I think there might be more at work here than just the rifling. Many people talk about the effect that porting has on accuracy. It seems like the Blastertech barrel had more significant porting than the Acuratio. If that's the case then perhaps we're seeing the effects of both factors in the results, with the Blastertech outperforming the Acuratio.
The problem with tight rifling in a flywheel setup is the drag it would add, considering the dart has no air pushing behind it like on a sealed breech system, the dart may not even leave the scar fired from a flywheeler.
Which type of rifling would you recommend for the nexus pro?
This video needs to be shared
Great comparison. I have a couple questions though. How much twist do you run, how much twist is too much, and how would one go about testing that? On my Caliburn (K26, 18 inch barrel w/ sealed pusher) at the moment I've settled on 1/4 twist (or slightly more sometimes) but it just feels like a lot. I'm using the suppressor style 3D printed SCAR that Captain Slug designed, could that be part of the problem (if there is one) and would it be wise to replace it with a BlasterTech?
Twist is for adjusting the tension of the strings on the darts. Optimal twist should be what drops your velocities the least but not having any slop or excess looseness when just dropping a dart through it.
@@donutcat0 Right on, thanks. But doesn't twist on a SCAR also function like firearm rifling also? At least it does on mine. I figure that has to have some effect on accuracy as well. Or is that what you mean by how tight it is?
@@Stryker5260 It does impart some spin on the dart, but spin on darts has negligible effect on their accuracy because of the flight characteristics of front-weighted drag-stabilized projectiles. Some basic testing by CaptainSlug can be found at nerfhaven.com/forums/topic/28050-on-the-topic-of-scar-barrels/ with a more comprehensive overview at www.reddit.com/r/Nerf/comments/7d19wt/please_tell_me_everything_you_know_about_scar/dpvkttg/ which basically collects most information about the physics of Scar barrels into one post to deliver an encompassing conclusion to the debate at the time, which was: If you can properly tension a straight-strung Scar to your darts it will give the same gains as one with twist, that the dissipation of muzzle blast is what's giving you an increase in accuracy.
I will note that too much spin will destabilize them, as noted in the reddit post, but chances are that you'll see too snug of a fit on the darts causing issues before you see issues from too much twist.
I find 1/4 twist works best for me but at much lower fps you may want to reduce it one click so it doesn't affect your velocity as much.
I see, thank you both!
Do these scar barrels work with full length darts? I like how it looks aesthetically on my rifle (Max Stryker) and I also would like to slightly improve accuracy if at all. Thanks!
Should work but not many people use full length darts anymore
@@BradleyPhillipsYTThe vast majority of 'foam flingers' still use full size darts, because the vast majority of blasters still use that type. There are more varieties of full sized darts than half darts, and they're easier to get hold of. What you mean is that most of the "hobbyists" don't use them. 😉 But they're a relatively small minority of foam flingers globally. Still, we can forgive you... we know Australians have everything upside-down 🙃
Would this work on a very slightly moded max stryker pro
I'm currently 3d printing a rifled barrel for my nexus pro.
Maybe a man shaped target with aimpoint being center of mass for a test like this would work better.
Hey I want to buy a performance based nerf blaster under $100 I'm thinking about either getting the Perses with the hopper extension or the jet blaster ceda s Please help me decide and you're free to leave suggestions for other performance blasters at the 100 dollar range
Definitely the Ceda-S for your price range
@@BradleyPhillipsYT OMG you replied!!! Thank you so much!!! We need more people like you who help and are active in the UA-cam community and honestly your videos are very informative and have helped me a lot of times Thanks for the great content!
That breathing tho bro
How does the blaster tech scar fit on jet style threaded barrels? I am using the 35mm monkee mods currently.
The 16mm Universal size BT scar will slide on with a little teflon tape covering the threads.
will the BlasterTech Mk2 SCAR work on nexus pro?
Thanks for doing this test. Can't go wrong with either but if you are in the U.S. there is no reason not to order an Accuratio for the price.
True. Unless price isn't an issue to you and you just want the utmost performance.
Should I consider rifling my aeon pro
Can you test rifling versus vent holes with no rifling, and rifling vs rifling with no vent holes?
Yes they work I have both but I noticed legos is shorter then the one I have. By the way Brad what scope are you using?
I have the version 3 Acuratio in this video. The scope is a Holosun Hs506.
What about rifling with Rival balls?
Those worker gen3’s must have auto homing in them lol
will the blasterTECH scar fit inside the longstrike barrel?
Btw I live in Norway, will the darts be affected by the high humidity we have here?
it's really HIGH btw
Not sure on humidity but Worker Gen 3 are a loose fitting dart so may actually work better in your climate. Blastertech is a large scar barrel and will not fit inside the LSK muzzle unfortunately.
@@BradleyPhillipsYT k thank you
@@BradleyPhillipsYT could you check the diameter of the scar?
@@DM-gf2ei Roughly 30mm at the widest point where the strings secure. I'm using a ruler not calipers, hence the "roughly".
glad to see the benchrest setup.
That thing must leave some nasty welts
What if someone could engineer a rifled barrel that has gradual spiral rotation of fly wheels, I am aware this isn’t cost effective and would merely improve range and stability.
Cost, complexity, weight, and assuming you mean powered flywheels, keeping things synchronised would be a nightmare.
@@another3997 I think in succession the gradual rotation fly wheels would add in theory two points of anti friction. Forwards and clockwise. I would like to also add in the barrel component would more than like shred the dart after enough forces are applied to it.
Maybe start the experiment with gradual rotation bearings that way we can tell if it’s even possible to spin a dart and what benefits it could present. Then move on the powered bearings/flywheel. The design could be very similar in function and concept as a rail-coil gun
the sniper
Oh...if only these type of Nerds were around in the 80s....
it depends on the spin ratio of the barrel
where can i get the gun and upgrades
I'm going to be slightly picky: I think it's not entirely "correct" to call this "Does *rifling* work" when we know that dissipating muzzle blast is the significant factor affecting accuracy from Scar-type attachments. It could be said that the rifling is what does the dissipation, but even just a ported barrel without any imparted spin is providing the same benefits to accuracy.
This is not true. Using two 3d printed attachments that are the same in every which way with the only variability being straight grooves or sprialed grooves (rifling), we see a massive accuracy improvement. Data collected over 50 shots each. Both have muzzle brakes (ported). www.reddit.com/r/Nerf/comments/aojy7d/rifling_works_and_worker_darts/
This is also a question I can answer in future when Spectre finishes his ported barrel which has porting along the entire length.
@@theLegoDEI Prefacing this by noting that I'm not trying to sound aggressive here, but tone isn't conveyed well in text:
In your testing you say that a printed straight flute attachment performs on part with a twisted strung Scar and a printed twisted flute attachment will outperform those. In this video though it seems that the sample of darts(an admittedly small number) performed seemingly more consistently through the strung Scar than the Accuratio. Any thoughts on this specifically?
Something else I'd like to bring up is the possibility that the nature of FDM printing is skewing your results. Is there a chance you think that inconsistencies in printing could be impacting the performance of the straight flute design while more even distribution within the spiral fluted design would lower the impact they would have? This is of course of questionable practical importance because we'll obviously just use what gives the best results regardless of whether the idea is completely correct or not, but I bring it up as a point in the science of the matter.
In a spiral design the flutes will be longer than a straight flute design. Do you think this is at all relevant to the results, ie is the (marginal) extra flute length letting enough air through them as to even further lower the effect of muzzle blast? Probably not, but it's something that popped in my head that I wasn't sure enough about to immediately dismiss.
Nope. It's easy to test the BT scar with and without twist, the difference is clear. Unless you want to claim that the twist somehow reduces muzzle blast even more. The rifling is doing more than the reduction in muzzle blast, especially with inconsistent darts like the ACC3s.
@@pyschohippymofo Changing twist changes tension on the darts, something LegoDei points out in his research. Go with no twist and you're also losing the centering effect which affects accuracy. He also points out that his printed straight flute and ported design can match benefits of twisted strung designs. Spectre's work with a full port barrel is also looking into porting as more important than spinning. CaptainSlug's testing in the links above also agreed with porting in a straight flute design being able to perform similar to spiral strung designs.
Is it possible to put rifling on a retaliator and put a barrel extenchon on it using full lengths
You would need a sealed breech, and to fire full lengths specifically would require either a brass breech or if someone comes out with a breech kit that takes full length darts, then that. But currently they all take half length darts only.
Bradley Phillips thank you for your advice and time also nice helmet you can see it in your shadow
I got an Accuratio yesterday fpr christmas and i shot 4 shots out of my caliburn and it was oviously more accurate
will these barrels work on a modified drain blaster
These work with caliburns right??
I've found my MK I Accuratio to perform better than my MK II and also reduce FPS much less in fact it slightly bumps FPS with Worker Gen II darts a .495 barrel Caliburn with 788 and I'm averaging 205.
Michael I found the same between my gen 1 and gen 2. I was using acc gen 3 darts though, and with the gen 2 I was getting whirlie birds. This is on an omega kit with stock spring and 35cm Monkee mods barrel.
Michael I have yet to test or compare my mk3 accuratio though.
This was a Mk3 Acuratio, but interesting findings.
Bradley Phillips if you could get your hands on the other two versions and do a direct comparison video across all three versions, I’d be interested in that video. Regardless, thanks for doing what you do!
These still legal down under?
ACC’s were basically Elite Darts
Hey, is the scope you use a red dot or something close to what you see on screen?
It's just a 1x red dot
Thankyou
do they perform like that in a non seal breach
Yes
what acog sight do you use?
Interesting video
This was a nice extensive test, well done - but didn't you already basically know that rifling works?
Now he and we know it *_definitely_* works.
@@Orax1701 Ive heard argument here and there that nerf darts using tail stabilisation and do not benefit from rifling... This disproves that visually, which pretty much can't be refuted. :)
I wonder how these attachments do with the dart zone darts
Brilliantly
Does a scar barrel work with flywheel blasters?
No, they are too tight to have a dart flung through them. Needs to have air pressure behind it to force it out.
Thanks
Great video
this video makes me wonder if nerf muskets are possible
Muzzle blast? Are ye puttin smokeless powder in ye toys?
Hi can you do a video on how longer barrels affect distance? I'd really appreciate this...
Longer barrel is relevant to the size of your blaster's plunger air volume and weight of the spring. Some blasters would get worse if you added a really long barrel so it would definitely be a difficult topic to tackle.
@@BradleyPhillipsYT Yet you did this with comparing different darts/different make barrels...
@plus 200 fps it's no longer a simple toy. And it's apparent that you are only doing this with likes of longshot plungers (which btw is too much). Half of that tube can launch the short dart to that distance. It would be simply nice to see a comparison video between: Barrel material like brass vs Alum, two types of lengths (your choosing), waxed (cleaned) vs dusty (whored). There are blasters that are coming out like DZP with interesting internals, springs, and plungers.
You are showing groupings hitting at aprox 2 ft width per 100 meters.
I just want you to take this hoppy into just the nimble range close airsoft/paintball. But still nerfed enough for mom.that's all....
Should I buy the worker terminator,
No
Okay, by the way do know about the auto priming stock for the longshot.
Yes, it's cool. Very expensive though.
Do you think it’s practical.
No
Which is more powerful xzeus or ceda?
Well a 220fps xZeus is as powerful as a 220fps Ceda, both possible to achieve, but you can potentially hit decently higher with Longshot compatible internals than you can with XPT Retal internals.
So they are even.
Xzeus with the same power spring will hit harder.
Nice one
sweet
Yep. Your plastic toy is way more precise than the most paintball guns. LoL
because my little brother is and he plays with nerf too!
but are you gay?
¿
Rifling gives range, and accuracy. not power
Is this system applicable to electric guns other than springers?
Flywheel blasters don't benefit well from this. Must be spring or air powered as far as I know.
Acc darts= half length Elite darts. LOL STUPIDLY INACCURATE WITHOUT RIFLING!!!!!!
what diameter should I buy the scar to use with omega ls kit
16mm
@@BradleyPhillipsYT thanks
if i am realistic. acc is more inaccurate than the nerf elite darts!
I believe part of the reason the accuracy is so bad without a scar is because of the insane fps you're firing the darts at. A scar might be improving accuracy partly by slowing down the dart.
SCAR's only slow down the dart by ~10fps at most. A simple velocity difference between 240 vs 250 fps won't make the difference that you see.
Yes at that speed - 250fps you need to stabilize the dart. I have fired Worker Gen3 darts at 90fps in a 16mm barrel (13mm internal) and they fire fairly straight without a scar.
So it depends on how fast you want to push them.