@Mr. 16 gauge , I think years of practice.
@Royal27 that's a neat looking shooting range. You beat me to the reloading comment. Learn to keep your rifle shouldered when reloading.
@Philip Glass , the best advice I can give you on your buff, is be confident with your shot, don't take the shot unless you confident. All ph's have different views, I personally don't like the frontal shot, I like him broad side and bust his shoulder up. If you do have to do a follow up on wounded buff, if you got time for 2 shots, take a quick snap shot, but your second shot wait for him as close as your nerves can hold, take clear aim and squeeze....hopefully we will read your report in a months time..