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Old 07-23-2009, 12:22 AM
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Paul5388 Paul5388 is offline
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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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