I've heard some people say that 1/7 twist barrel can't shoot 55gr. Is this true? The barrel is a 14.5 chrome line barrel CMMG. I've heard that it "overstabilizes"? although im not shooting at people... just paper targets. how is this?
What's the best ammo for 1/7? 62gr? 69gr? or should I go to the 75 and 77s? I just need a cheap plinking round. 55gr m193 ball?

