Krag Collectors Association Forum Archive | |
General >> Ammunition, reloading, shooting, etc >> Gonna try a new load
http://www.kragcollectorsassociation.org/cgi-bin/yabb2/YaBB.pl?num=1586303564 Message started by psteinmayer on Apr 7th, 2020 at 11:52pm |
Title: Re: Gonna try a new load Post by Parashooter on Apr 8th, 2020 at 5:19am
While there's nothing wrong (and plenty right) with reduced velocity loads, when you do them with slow powder you're just blowing a heap of unburnt granules out the muzzle. A faster powder can give good pressure, same velocity, and much less waste. Look at the "Prop.Burnt" column for an idea of QL's predicted efficiency with some other candidates giving the same estimated velocity as your 44.6 grain load of H4831SC -
Cartridge : .30-40 Krag Bullet : .308, 178, Hornady A-MAX 30712 Cartridge O.A.L. L6: 3.089 inch or 78.46 mm Barrel Length : 30.0 inch or 762.0 mm Predicted Data for Indicated Charges of the Following Powders. Matching Muzzle Velocity: 2278 fps or 694 m/s These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window. C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand that all of the listed powders can be unsuitable for the given combination of cartridge, bullet and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations. USE ONLY FOR COMPARISON ! Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time % Grains Gramm fps % psi psi ms --------------------------------- ----------------------------------------------------------------- Accurate 5744 61.4 26.3 1.70 2278 100.0 36499 4307 1.702 Alliant Reloder-10x 70.9 30.6 1.98 2278 100.0 33218 4626 1.766 Alliant Reloder- 7 65.7 29.1 1.88 2278 100.0 38572 4109 1.725 IMR 4198 71.5 29.3 1.90 2278 100.0 35373 4277 1.705 IMR 3031 76.7 32.8 2.12 2278 99.7 29163 5140 1.818 Alliant Reloder-12 73.2 34.2 2.21 2278 99.7 32569 4922 1.757 Hodgdon H4895 80.3 35.5 2.30 2278 97.9 30778 5229 1.769 IMR 4895 78.1 34.6 2.24 2278 96.7 29867 5350 1.772 IMR 4064 81.8 35.4 2.29 2278 95.2 32072 5271 1.772 IMR 4320 80.1 36.1 2.34 2278 95.0 30720 5370 1.776 Hodgdon VARGET 81.0 35.8 2.32 2278 94.8 31831 5337 1.760 IMR 4350 92.5 40.5 2.63 2278 85.4 31252 5648 1.769 Hodgdon H4831 SC 96.4 44.6 2.89 2278 81.8 31652 5799 1.755 |
Krag Collectors Association Forum Archive » Powered by YaBB 2.6.0! YaBB Forum Software © 2000-2024. All Rights Reserved. |