Magnum powder for the big boys! A highly-regarded powder for the large, over-bored magnum cartridges such as the .300 Remington Ultra Magnum, .30-378 Weatherby Magnum, and the 7mm Remington Ultra Magnum.
Mfr Part: IMR78281
Size: 1 lb
Mfr Part: IMR78288
Size: 8 lb
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