OK, I finally got out with my "Beta Master" chronograph and what I'm getting is 2461 FPS average of 10 shots 15 feet from the muzzle. Although I don't shoot for accuracy when I chrono and was getting a scope zeroed before that, I did get a couple of one hole with two shots. This was only at 50 yards. I know the .308 is one of the "inherntly accurate" rounds so I doubt if I'll lose any thing if I bump it up a little. I think I'll try some with 43 grains of TAC and see what that does. I don't feel the need to max out the speed , but DO want to get the full potential of the 150s. Any thoughts?