Every container of Alliant Smokeless Powder is backed by a century of manufacturing experience and the most exacting quality control procedures in the industry. Chemical composition, grain shape and size, and overall density are constantly checked and tested in a ballistics lab to ensure consistency.
Power Pro 4000-MR offers superior velocity and Lot-to-Lot uniformity. A spherical powder designed for magnum rifle calibers, the 4000-MR powder delivers improved velocity and density for easier metering. Because it’s designed for specific cartridge and applications, it will allow reloaders to create a load similar to factory loaded ammunition. the 4000-MR powder offers superior performance for 7mm and 300 Winchester Magnum cartridges.
Warnings from the Manufacturer:
Do not exceed the loads displayed in the reloaders guide.
Never mix any two powders regardless of type, brand, or source.
Never substitute any smokeless powder for Black Powder or any Black Powder substitute.
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