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Discussion Starter · #1 ·
I just got a new 600Jr for the .410 bore. It came with bushings number 10, 11, and 12. The Lyman's 4th edition says these bushings should throw 13, 13.8, and 14.6 grains of H110 respectively. The Mec site says they throw 14.2, 15, and 15.8 grains. Am I missing something? I'm currently weighing shot and powder on a scale, but when I find loads I want to produce in quantity I'll want to fill the shot and powder bottles (and buy more bushings). Anyone know why there is such a difference in the two figures? Could I be misreading the charts?
 

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Discussion Starter · #4 ·
Thanks guys. I was a bit worried since one set of values was nearly a 10% difference. Guess I'm still in "metallic" mode.
 
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