Pistol barrel rifling

[Olle]

Originally Posted by alanint

A friend of mine blew up an M16 by extensively firing lead .22 rimfire through it full auto with a conversion unit then swapping back to .223 without scrubbing out the barrel. After I saw that, I built a dedicated .22 rimfire upper for my M16 and use that, and only that, with .22 rimfire.

Word on the street is that you just have to shoot some .223 to get the fouling out, so thats good info. I shoot quite a bit of .22 through my Bushmaster, so I will definitely be cleaning it after each session.