Thanks, Bill. From the vast spread in the data that is in Speer there are other factors than barrel length at work, and cylinder gap is most likely a big one. I frequently load Unique and have been looking at it with 200 gr copper plated lead bullets in the .44 S&W spl. I will try the Unique with copper plated lead in the .38 spl as well. Powder burning rate also has to be a factor and pehaps crimping style as well. I'm still hoping someone will be able to refer me to some published data, warts and all.
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