Quote Originally Posted by Zero333 View Post
The deal here is a 20" bbl right ???

Ran the #'s in Quickload and....

7mm-08 with 162 amax, 3.00" coal, @ 59,000 psi, 20" bbl gets about 2,635 fps with common powders, and up to 2,647 fps with Ramshot Hunter.

7mm-08 AI, 162 amax, 3.00" coal, 59,000 psi, 20" bbl = around 2,675 fps with common powders, and up to 2,713 fps with Norma MRP.

280 Rem, 162 amax, 3.400" coal, 59,000 psi, 20" bbl = around 2,765 fps with common powders, and up to 2,797 fps with Norma MRP.

280 AI, 162 amax, 3.400" coal, 59,000 psi, 20" bbl = around 2,800 fps with common powders and up to 2,835 fps with a compressed load of RL-25.


If the barrel length is changed to 24" or 26" the gap between the 7mm08 and 280rem is even bigger.

My brother hunts with a 7mm08 and in a 7.2 lb rifle shooting 140's at around 2,770 fps (22"bbl), the recoil is no different than a 308win, and the ballistics ain't that much better than the 308win.
So, the .280 gains less than 100 FPS over the 7-08 in the 20" barrel. That makes the 7-08 anemic? Looks like a wash to me. Less powder and less recoil also.

Rosewood