11 replies to this topic

[Tarius]

On Nerf world in the home made section is a rifled PETG barrel, does it help at all? I was going to use it in my summer project of mking a home made nerf gun.

[Goat]

From what I here rifling a nerf barrel decreases range alot, makes darts fishtail, and also makes it more accurate.

[Tarius]

well I guess I could aim a little higher, but I do practice a lot, so I might be able to get it to work right.

[okto]

Rifling in a firearm works because the lead of the bullet actually deforms and expands to fit into the grooves. FBR won't do this, at least not without shredding. People have tried rifled barrels, and they don't work. Not to mention they're hard to make with any degree of accuracy.

[N3maN]

Sorry to bring up an old topic, don't bash me, i know, but i have some ideas about how to get a rifled barrel to work. I went to the nerf world website to try to find out how it was made, but i couldn't find anything. Does anyone know who made it, how, or how i can find out? The only thing i can find about it so far on NH is this and Crankywanky's idea of using a fan? what the???
Thanxks
N3

[Ash]

I'm not sure what people don't understand about this...

A rifled barrel is not going to work with nerf. It is pointless. The rules of physics that apply to rifling with bullets are not even close to being similiar to the way that they will apply to foam projectiles. Give it up.

[silent mercenary]

As a side note to Ash's post, niether does rifling the darts

[Viper]

You could port your barrel spirally like they use in paintball to make the balls spin or like I do on my sm5000. I get tighter groups(3/2) with my sm5000 after porting it spirally. Whether its because it makes the dart spin or is merely an optimal porting configuration I don't know.

Edited by Viper, 13 January 2005 - 01:10 PM.

[WEASEL]

If anyone even bothered to read the reveiw of the rifled petg (nerfworld.com, go to homemades, last link) he said that it worked when it worked, but sucked when it didn't. He also said that it was a litle bit crooked. Maybe if one could put the rifled barrel inside a peice of pvc to keep it straight, it would work better. But as has been pointed out before, the foam doesn't expand enough, so there would be a gap between the groove and the pvc. One could fill that in however...

[Viper]

I'm not sure if any of you have ever seen a bullet after its been fired, because shooting through stacks of polycarbonate and paper isn't usually a common hobby, but a rifled bullet is a mess of deep-ingrained rifle marks. If you were to actucally get it out of the barrel, you'd lose a dart per fire.

[N3maN]

What i am thinking of doing is putting little nocks of wood, like pieces of a match or suchlike, and making them fill the groves. this would give the dart what it needs to spin PROPERLY, without the need to expand, and will fill the gaps between dart and groove. So could somone please tell me if they know how to make one of these rifled barrels so i can test some ideas like this.
Thanks
N3

[Viper]

A fitting drill bit works. If you are to rifle it don't even make the dart make 1 full rotatation. The common law is to have less rotations per ___ feet the slower the projectile. I think my dad's .50 cal muzzle loader at 1400 FPS has a turn at every 18 inches. An unmodded powerclip will get 58 feet per second, sometimes closer to 65 feet per second and it gets like 45 feet on a flat shot. In paintball there is 2 companies that have tried rifling. 1 actually rifles to keep the dart stable and keep from spinning, the other uses that matchstick idea w/ metal grooves, but isn't very successful in accuracy, only range. The conventional wisdom is that paintballs move too slow for rifling to work and the same with airsoft, so they use hop up and the flatline's valley-type barrel to put backspin on the ball. That's a no can do with nerf, since the projectile isn't exactly spherical at all. Paintball guns usually shoot 300 fps on a competive level, can shoot up to 500 fps with a nitrogen tank and airsoft gets between 150-600 FPS.