280AI is my first choice. The long M700 action will take the 280AI cartridge with a 160 grain Nosler seated out where it belongs. Good Elk Medicine!! My 280AI reamer is throated for the 160 Nosler with the base of the bullet at the neck/shoulder junction.
A No. 1 contour is a little light for accuracy. OK for a mountain rifle.
280AI needs at least a 26 inch barrel to take advantage of the case capacity.
A few years ago I ran across over 1000 rounds of Remington factory loads in 280 Rem at a garage sale. Got the whole batch for $25. So I am set for life with fire forming fodder for the 280AI.
