Best of luck, will await the report.
No joy in Mudville. The loads wouldn't group better than 1" at 50 yards. I was using a stiff load of 4759. Methinks dropping back to Unique or Bullseye (for a good swift kick in the bullet's pants) is where I need to just stay.
Mind you, 1" at 50 yards is certainly useful squirrel hunting accuracy but I think Mr. Kilbourn would encourage more accuracy out of the rifle he built. Jacketed stuff certainly performs better than twice as well as that.