So did you compare the Tripple 7 pellets at 63 yards or were the T7 pellets at 100 yards and the Pyrodex ones at 66? I think I may go see if the gunshop will exchange the T7 pellets for the Pyrodex ones. Thanks for your help.
BTW you can see what I did with 100 grains of T7 pellets and a 295 Grain Powerbelt hollow point here. That's a 8" target for size reference. I shot the two on the right touching. Then I adjusted the scope to the left and shot those. I'm not sure if it was me or the scope. For some reason I have trouble shooting great groups at 100 yards. I'm not sure what happened.
Anyway, I may try to trade for the Pyrodex ones if they will let me.