I've had good luck with 90 gr Nosler bonded out of both my 20" AR and my 20" bolt gun I built out of a Savage donor rifle.
I averaged 3004 FPS out of the bolt gun with a medium load and the bullets touch each other at 100. A real fun gun to shoot, and easily my most accurate rifle.
Two shots, two bang flops. Nice 8 point for the AR, doe for the bolt gun.
I've since built a lighter weight 16" AR in .277 Wolverine and use that mostly, unless I might need to stretch out and reach them past 250.
