Still haven't seen the math on Shrapnel's Hornet, so I guess I can't comment on his situation. I do know what my hornet does, and it varies greatly to what I reload. Maybe I'm missing the tone of your comments, but for your "high power" 3/4" low is a far cry from 25 vs. dead nutz at 25 for 100 yards. It makes that kind of difference. The higher the sight, the worse it gets. Looks to me like you are nearly what the RCBS program predicts.