140 Nosler B/T's with Win Lrg Mag primers, and RL 22 64.5 grains. I think its the middle of the pack in velocity, somewhere near 3000 fps. I also have found the B/t's like to be backed off the lands, I seat mine to thirty thousanth off, have tried closer but my M77 7mm mag just doesnt like it. I would highly recommend trying the Reloader 22 powder, I have seen alot of threads on here that guys profess to using the Rl22. Just an option.