I built a 260 on a Savage LA. I used a Shilen barrel, Calahan recoil lug, and a SSS stock. I have been trying various bullets, powders, brass etc but the best I can get out of this gun is maybe 3/4 MOA. I've managed to tune my other guns to the point where they stack bullets in virtually the same hole, so I know my technique should be sufficient. The rifle is also bedded in case you're wondering.

Does anyone have a suggestion for an accurate 260 receipe? Power, bullet? I've tried 142g HPBT with Varget, and 120g Spitzer with IMR 4895. I've tried varying the jump but nothing seems to help. The barrel is an 8 twist.

Any ideas or maybe a load which works for you?