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General >> Ammunition, reloading, shooting, etc >> Summary on W.A. .30
http://www.kragcollectorsassociation.org/cgi-bin/yabb2/YaBB.pl?num=1559934187 Message started by butlersrangers on Jun 7th, 2019 at 7:03pm |
Title: Re: Summary on W.A. .30 Post by Parashooter on Jun 8th, 2019 at 7:00pm butlersrangers wrote on Jun 8th, 2019 at 6:36pm:
No pressures from Sierra manual (testing done in 22" Krag, no pressure gun). QuickLOAD gives estimates (in CIP piezo psi) - Cartridge : .30-40 Krag Bullet : .308, 220, Woodleigh FMJ 65 Cartridge O.A.L. L6: 3.089 inch or 78.46 mm Barrel Length : 22.0 inch or 558.8 mm Powder : IMR 4895 Predicted data by increasing and decreasing the given charge, incremented in steps of 2.941% of nominal charge. CAUTION: Figures exceed maximum and minimum recommended loads ! Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time % % Grains fps ft.lbs psi psi % ms -11.8 72 30.00 1837 1649 27694 6150 95.8 1.682 -08.8 75 31.00 1891 1747 29864 6369 96.8 1.631 -05.9 77 32.00 1945 1848 32192 6574 97.7 1.582 -02.9 80 33.00 1998 1950 34686 6765 98.5 1.535 +00.0 82 34.00 2051 2055 37364 6940 99.1 1.489 |
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