My only concern is that if my groups open up there is no point in shooting it either.
The redneck heathens I shoot with are all about groups. Sure, they shoot steel for fun but when it comes down to serious business it's who can keep it together on paper. You shoot more than one 1 MOA and they tell you to go home and take your diapers with you.
If you can keep 10 shots in a 3 inch circle at 300 you are doing good. Ten shots in the x ring (1.5 inches) and you can run with the best of them around here. Every one of the RPR's I've seen are shooters with the appropriate handloads.
I agree that I would like to see the speed up around 3K or so. I'll keep playing around with it. What was your velocity at 41.6?