![]() Run your figures on the Hatcher Scale (AKA Index of Relative Stopping Power) and I think you'll conclude that the 44-40 is very capable defensive caliber with your present loads on board.lol, thanks! I need to go digest that info. All of these formulae rely upon some element of the terminal ballistic equation being squared (velocity, bullet weight, or diameter) to obtain a result, and only the Hatcher Theory squares the factor (bullet diameter) that is actually squared in real life. I wouldn't get all wrapped around the axle of calculated energy figures. The 44-40 is about a 10% boost to those results on account of its heavier boolit. In modern parlance, the 40 S&W is well-regarded as a defensive caliber, and the 38-40's ballistics in a revolver is a close match to that performance. The hyphenated Winchester pistol/revolver rounds (32-20, 38-40, and 44-40 WCF) all seemed to produce about 1200 FPS in rifles or carbines and 900-950 FPS in revolvers in their 19th Century blackpowder versions.
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