Hopefully finishing up and finalizing the 50 grains tomorrow and whichever is most accurate, looking like 26.1 grains of Benchmark if I was to guess, and then whichever is most accurate I'll chrono on the next loading. 24" barrel 1:12 twist. Was hoping it would be a max load but it is not. Good groupings in the middle and one a couple loads down from max for the initial 3 shot group but I'll have to say, they are accurate. Usually shoot 40 grainers at 3400fps with H335 but if Benchmark gets me close for 50 grainers, I may use them instead on the next prairie dog shoot. I'm expecting about 3350fps as listed above by someone else, but we will see.