Warhorse Posted January 8, 2011 Share Posted January 8, 2011 I have a R&D conversion cylinder for my 1858 Remington in .44 to shoot .45 Long Colt cartridges. Much to my surprise, with the conversion cylinder the point of impact at 25 yards was over a FOOT higher than when I used the percussion cylinder. Both groups were about the same size, roughly 3" diameter. The .45 Long Colt cartridges are Black Hills Cowboy loads. The percussion charge is about 35 grains. (Can't remember charge exactly, set the fixed charge tube a very long time ago, but it nearly fills the chamber with just sufficient room to properly seat the round ball.) Any bright ideas why this should be so? I have not yet taken the time to experiment with different charges for the percussion cylinder. I suspect that the heavier charge in the percussion cylinder is the likely reason for its lower strike. A lighter charge would allow a little more time for recoil response to affect the bullet trajectory. Does this sound right? Warhorse Link to comment Share on other sites More sharing options...
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