If by "Long Term Powder" you mean "powder that will remain stable for the longest period of time when properly stored, either loaded in cartridges or not" the 2400, Unique, Bullseye trifecta is unbeatable.

From .32 S&W through .38 S&W, .38 Special, nine, .357, .40, .44, .45 and 7.62x39, .30-30 those three are all you really NEED for target through full power magnum.

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Certified Curmudgeon