My buddy uses 139 SST factory light mag ammo in 280, very explosive from what I have seen on bobcat, deer, etc.
I used a 105 amax, 400 yds double lunged, exit, deer stumbled all but 25 yds, 2840 mv out of a 6BR. Same load, seconds earlier, spine shot on another deer, 200 yds, bullet vaporized on bone at high speed, but DRT, Dead right there, Dropped right there....
Shot placement.
If I were shooting real long shots, the Amax would rank my top choice, or one of them, they WILL expand at lower speeds well. Close shots/high impact speeds, PICK shots.
But an Amax in lungs = DEAD deer quick in my book. No bones/hard angles if possible. Can act like a varmint bullet.
130 Accubond is a NICE all around 6.5 bullet IMHO. FWIW, I'd go with a 140 amax in your 260, more bullet, less speed, better close and works far also, HIGH BC, trajectory similar.
