I agree with Art, if I group a rifle it is either securely rested on bags, or locked into my rest/rifle vise. I have a lot more picky about rifle selection and features (such as free floating, twist, and such). If a rifle isn't up to par as far as grouping after being broken in, I usually find it a new home. I don't hunt anymore, so accuracy on paper is a pretty big deal to me.
" The strongest reason for the people to retain the right to
keep and bear arms is, as a last resort, to protect
themselves against tyranny in Government...." - Thomas Jefferson