For my son's 357 Mag Henry, I wanted to use special length cases for a 180 gr bullet but load to Magnum pressures. I trimmed some magnum cases to SP length.
Case capacity is likely to be less than using real SP cases. I plugged in the magnum case and the AOL from the SP to approximate the change in case capacity.
Here is what the "best" powder for this application looks like:
Code:
Cartridge : .44 S&W Special length, 44 Mag headstamp
Bullet : .430, 400 gr, 1.1" length
Cartridge O.A.L. L6: 1.620 inch = 41.15 mm
Barrel Length : 17.5 inch = 444.5 mm
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
--------------------------------- -----------------------------------------------------------------
Alliant POWER PISTOL 79.4 6.9 0.45 980 100.0 32061 848 1.873