Bad Bascomb, SASS # 47,494 Posted September 29, 2021 Share Posted September 29, 2021 You experienced Soot Lords likely know this. I'm loading .38 Short Colt cases with 3f, and have both Goex and APP. I know there should be no air space between top of powder and base of bullet. Do you compensate (and in what manner) when using the Speer 148 gr. hollow-base wadcutter? I developed a nice mild Trail Boss load to prove to myself the bullet would work and not lead the barrel, but the end objective is to get it to work with smokey powder. Using Taylor's .38 conversion cylinders and Starline brass with Trail Boss I got a nice average 620 fps with a SD of 8. Groups nicely, shoots mild. I can think of ways to fill the cavity in the base, but am leery of any actual powder compression. Am I living in needless fear, or is this a real concern? Any experience-based help is greatly appreciated. Link to comment Share on other sites More sharing options...
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