alliant unique 8lb powder / don’t miss out. limited stock. near me. buy now
American-made powder for magnum rifle calibers Alliant Power Pro 4000-MR Powder is a popular choice. This powder is easier to measure because it has a higher velocity and density. The powder is subject to extensive testing in a laboratory for ballistics. This ensures that it performs well with.300 Winchester Magnum cartridges and 7mm cartridges.