After you have decided upon your rifle, scope and load/bullet combination, what's next? What should the hundred yard zero be? Dead on at 100, an inch high, inch and a half etc.....? What is acceptable 100 yard accuracy before stepping up in yardage? I know that you want all you can get but is MOA good enough or does it have to be sub-MOA for 5-700 yard accuracy? Is the accuracy you consider minimum based on three, five, or?? shot groups? Thanks!