USCG
The 1/11.25, (if that is what you have), according to barrel maker Lilja’s chart, is ideal for bullet weights from 150 to 200 gr It may also shoot as 130’s and as high as 225’s. Shilen’s chart says 165 and up.
You might try a different powder. Although I got better velocities with RL-22 and IMR 4350, but much better accuracy with IMR 4831 at/near max with 165 to 200 gr bullets.
For a hunting bullet, I settled on Nosler 200 Partition. Surprisingly, the 200 Partition worked very well for long distance antelope in windy conditions.
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