paint ball gun barrel dimentions.

Bubba05 · Tue Jan 06, 2009 10:19 pm

Hey guys just a quick question?
Dose any one know the internal diamiter of a paint ball gun barrel. I know the ammo is .68, but what size is the barrel?
Dose any one know
thanks
Bubba

Hailfire753 · Tue Jan 06, 2009 10:35 pm

.69-.71 Depending on your paint-to-bore match.
Generally, the closer to .69, the better, as you need a tight fit with room for paintball moisture expansion. I used sch 120 pvc. works great.

Bubba05 · Tue Jan 06, 2009 10:39 pm

Thanks mate.
Im working on a little project and was wanting to use paint balls as ammo...easy to get and consistant.
could i use aluminium? or stainless?

when i gets it up and running i shall submit photos.

Bubba

Hailfire753 · Tue Jan 06, 2009 10:47 pm

Yes, metal is even better because it is less affected by CO2 temperature, unlike pvc. Go for it!

I remember seeing a metal pipe on Mcmaster that had really good dimensions for a paintball barrel, for a good price, but I lost the link.

Good luck!

Velocity · Tue Jan 06, 2009 11:47 pm

I am pretty sure the paintball industry uses 0.68" ID 0.75" OD aluminum hydraulic tubing. You can buy 6' off McMaster.com for like $15 (part #89965K62). I use this tubing on my paintball guns, and I think it works great.

Hailfire753 · Wed Jan 07, 2009 5:00 pm

That's the tubing I mentioned, thanks for the item number, velocity. I have not heard of an "industry standard" before... do you mean for the valve and breach assembly, or the actual barrel?

Many brands sell barrel packs with different sized barrels to swap out for better paint-to-barrel match, as field paint varies in quality.

Bubba05 · Wed Jan 07, 2009 6:14 pm

thanks guys for the info.
Now to get started.

Thanks Bubba

sputnick · Wed Jan 07, 2009 6:57 pm

I always use 3/4 inch cpvc for paintball barrels, it works great, and is VERY cheap, you don't even need many fittings.

At any rate, what is this for? any hints for a nice new paintball gun?

Bubba05 · Sun Jan 11, 2009 6:22 pm

I'm designing a single shot sniper rifle with my uncle. This will bring a few challenges when playing the game as you will have to be like the sniper. You will have to hide better as you don't have the rate of fire. I plan to have it really accurate as well. Hence metal engineering the barrel.
So this going to be a fun project.
as i said when its all said and done ill post some pics and everybodys favorite of corse damage pics!

thanks

Bubba