You really should zero your hunting rifle at the actual yardage instead of guestimating 1" high at 100 yards. Otherwise it's nearly impossible to tell if your group is centered exactly 1" high, or is it really 1.3" high? Or maybe it's .8" high? It makes a difference down range.
My 223 is supposed to be 0.3" high at 100 yards for a 150 yard zero. Darned if I could ever really tell whether my 3/4" 5-shot group is really 0.3" high or is it 0.5" high or maybe it's only 0.1" high? Pretty hard to tell the difference, and then do it consistently.
