Fiftydriver
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Just started the barrel break in this morning, this will not take long. Only three rounds down the tube and there simply is no copper fouling to mention after a few strokes with a bronze brush and some butches bore shine.
The load I am using is 145 gr of H-50BMG under the 300 gr SMK seated 50 thou off the lands and lit with a Fed-215 primer.
Average velocity has been 3455 fps for those three shots. This load is a full 5 grains under my set max load so I would guess 3500 fps will not be much of a problem.
Just another tid bit.
Kirby Allen(50)
The load I am using is 145 gr of H-50BMG under the 300 gr SMK seated 50 thou off the lands and lit with a Fed-215 primer.
Average velocity has been 3455 fps for those three shots. This load is a full 5 grains under my set max load so I would guess 3500 fps will not be much of a problem.
Just another tid bit.
Kirby Allen(50)