My Sako L461 likes H322 with the 40 BT, loaded a touch hot, a half grain over book max.

40 BT
24.5 gr H322*
Norma brass
Federal 205M primer

*Nosler #5 lists 24.0 grains as maximum.

Chronos @ 3560 fps from a 24" barrel. Shoot itty-bitty groups if I haven't hit the coffee too hard that morning.