I am looking to get into some clays shooting; just for fun not competition for now. I will probably get an O/U in 28" or 30". I am in my mid 50's and really have only shot a shotgun a few times in my life; always been a handgun shooter. Would I be just as happy with a 20guage as a 12? Also will be buying new; I have been told that the "old" Brownings are very good' the "new" ones not so good..any truth to that??