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Hi All,
Thanks for looking in. I am thinking about building a rifle and watched a youtube video and the gentleman was mentioning how a 9-1 or 12-1 'screw' or rifling is not that good for a heavier bullet opposed to a military 7-1, eg M-4. In my case running a 556 through it opposed to a 223...
I just received (after a long wait) my .40 s&w barrel from Sig. I took it out to the range and put 250 rounds through it at a variety of distances. Even with basic ammo I had great success (compared to my .357 sig barrel, but that's another story entirely...)
While I was cleaning it I took the...