Huh? Bro, I read your post 3 times, and still not sure what you mean. If the question is: "Can a heavier person control recoil easier than a skinny person?", well, to SOME extent, yes- action vs reaction. However, check the young PFC that took an Olympic Gold Medal this year in skeet- He is definitely not a football linebacker! Back in '82 I met a female 1Lt that was a member of the President's 100- and she shot the M-14. Think she weighed about 110. Part of the equation is mass, part is strength, part is training, and LOT is practice.