RE: max range
I routinely practice out to 50 yards, and on calm days will shoot at 70 yards, but I like to keep my hunting shots inside of 40. I know that on an average day I can hit what I want at 40 yards, so that is good enough for me. I try to keep it inside that because there are other hunting factors that start to come into play, like animal movement, wind, unusual positions for the shot, etc. These will chip away at accuracy so I take them into account.