rock jock
Member
I have read several times that a 2" barrel is just as inherently accurate as, say, a 6" or 8" barrel (neglecting velocity loss and sight radius). Now, this does not seem intuitve to me. I would expect that the longer barrel would help to stabilize the bullet before it leaves the barrel. So, my question is, is there a minimum length below which accuracy begins to fall off significantly? Let's say you had a 1" barrel. First, for a lot of bullets, you are close to having a good portion of the bullet already occupying the first half-inch of the barrel while the round is seated in the chamber. Then once the bullet leaves the case, it encounters very little twist in the rifling (a 1:14 rifling twist would give 1/14 of 360 degrees, or 25 degrees of rotation before the muzzle). So what gives here? Expert opinions please.