Wrong. The Mashburn will move a 160-162 at 3200-3250. Ask anyone who has one.
Ok, if you just want to play with numbers, a long throated 7RM will do 3100-3150 with a 160 without pushing too hard, and a 7Wby will hit 3200, so we're still talking maybe 100 FPS vs. the SAAMI rounds.
BTW, Dober is breaking in a new Mashburn barrel. He wanted me to tell you that his FF load is doing 3160 with a 139 gr ....we both thought..."Sure seems like a 280AI to me!"
That's the physics thing I was talking about. Bigger cases drive the same bullets faster
I was never equating the 280AI to the Mashburn and you know it.
My only question for you is why an additional 100 FPS from the Mashburn is so much more important than the 100 FPS gained from AI'ing a 280. It's a tough question.
