Quote:
Originally Posted by Paul5388
The image Skip posted was from the 1980 era, when it was Hercules 2400. The load I posted was using 2004 vintage Alliant 2400. That leads me to believe there isn't an appreciable difference between the two powders, at least in the lot I have.
If there was more than lot to lot variation, they would be calling the new powder 2399 or 2401, not 2400.
A little resistance in extraction can be due to minute amounts of powder residue reducing the chamber dimensions. 2400 does leave some residue, even with higher pressure loads.
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In the spirit of the post about variation from one revolver to the next, I'm going to go back to try this load again in my Model 27, the one in which these loads were originally worked up, and see if there's any difference now.
I dunno, is 2400 temperature sensitive? It was damn hot the day these loads were tested in LLs Model 28.