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Alliant Power Pro 300MP
Alliant Smokeless Powder
ALLIANT POWER PRO 300MP 1#, ALLIANT POWER PRO 300MP 8#
(verified owner) – December 17, 2020
Alliant 300-MP is excellent for 357 Magnum, 125 gn JSP shot from a lever gun or heavy revolver.
Col G Gerlach PhD USMC
– January 11, 2021
An extremely good, high energy powder very closely similar, if not the same as, H110/Win296. Useful for maximum or very near maximum loads, but only with Magnum primers. Do NOT attempt to use any non-Magnum primers.
– January 23, 2021
magnum primers are not recommended for 300 MP
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