Buy Alliant Power Pro 4000-MR Smokeless Gun Powder Online. Each bottle of Alliant Smokeless Powder is backed by a century of manufacturing expertise and the industry’s most stringent quality control systems. In a ballistics laboratory, the chemical composition, grain shape and size, and overall density are regularly monitored and tested to assure uniformity. Power Pro 4000-MR provides improved velocity and consistency from Lot to Lot. Buy Alliant Power Pro 4000-MR Smokeless Gun Powder Online. The 4000-MR powder is a spherical powder intended for magnum rifle calibers that improves velocity and density for simpler dosing. Because it is developed for certain cartridges and uses, it will enable reloaders to make loads that are comparable to factory-loaded ammunition. The performance of the 4000-MR powder for 7mm and 300 Winchester Magnum cartridges is exceptional.

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.