EDIT: As launched and for many years afterward, Remington made their 260s with a 1-9" ROT, marginal for many bullets weighing over 130 grains.[/quote more than just marginal more like plain inadequate. My SA M700 with a ss 260 Rem barrel off a Mountain rifle has the 1in 9 twist and plain doesn't shoot much over 100 grs with a damn. MB
My old Mountain Rifle shoots 140 Amax, 140 Partitions and 140 Hornady SP’s excellent. The main 2 bullets I shoots are the 129 Hornady and the 120 Nosler BT.
