I loaded 10 up with 42.6gr staBALL shooting 100gr hornady’s And I got 2813 fps for my avg. groups were okay, but nothing I be happy with. I tried imr 4350 42.0grs with 95gr partitions I was getting 2880. Groups are still not great, I loaded them .010 off the lands.
Start adding the powder to that 95 grain load. It will speed up and I bet groups shrink.
