To kinda follow on this question, I've got a Colt MT 20in HBAR that I'm thinking about getting turned down to a govn't profile. I get pretty good groups from it but have never really fired it under conditions where I could accurately figure the MOA. I'd like to get it lightened but I've still got ideas about shooting Service Rifle matches some day. While I know you said above that if you've got a bad-ass match barrel it would loosen up the groups, do you think it would much effect a run of the mill Colt HBAR? I know you won't be able to come back and say, "yeah, it'll loosen up your groups by X amount", but just an idea.