I do believe in the A-Max for deer been using the 178gr 30 cal and 105 243 A-Maxs for years. What twist barrel are on your 7MM's I know the Wby is a 1-9" twist, what's your 280AI. The box has 1-8" twist on it that's why I asked. You can give up a little on the twist when you drive the bullets faster. Want to see how the work out of the 7-08 at the 7-08 velocity. I have used the 162gr SPBT in my sons 7-08 with it shooting one hole group at 100 yards. I know the A-Max has more bearing surface and wonder if that is why they say 1-8 twist
Bearing surface isn't the determinant.
