Alliant Power Pro 300MP Smokeless Gun Powder
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.
Alliant Power Pro 300MP Smokeless Gun Powder
Power Pro 300-MP offers superior velocity and Lot-to-Lot uniformity. A spherical powder designed for magnum pistol calibers, Power Pro 300-MP 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. Secondary use includes 22 Hornet loads.
Warnings from the Manufacturer:
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.
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.
WARNING: 
Joe Gordon –
When I first tried this, it was for a 5″ Ruger GP100 357mag. I started low and worked up, and noticed the velocity reached a plateau where an increase in charge gave no increase in velocity. I was getting about the same velocity as other powders (H-110 and N-110) but with no pressure signs. I then decided to try working up loads for my 16″ Rossi 92 and there I saw a linear increase in velocity right up to the max charge. I settled on a load that was slightly less than max, where I saw 1800fps with a 158gn XTP. Accuracy was great, too. A plus is that I can use regular primers, and see absolutely no high pressure signs. I later tried loads in 44mag for both a 20″ rifle and a 10″ Blackhawk revolver, both worked very well. I believe this powder really shines in longer barrels.
James Porter –
I was using Alliant 410 for my skeet loads and ran out of powder. Went to the local supply store and all they had was a 1b and 8lb can of 300MP on the shelf. Alliant lists a skeet load for the 410 using 300MP so I purchased the 1lb can to try out. I have enjoyed using this powder for it burns clean, does not seem to burn the ends of the hulls as much as 410 and I can obtain 6 good reloads out of my hulls. It is a little more expensive to load requiring more grains of powder than 410, however, the reloads it makes are really impressive. I went back to purchase the 8lb container but it was gone. I will purchase some more once supplies start to comeback.