Alliant Pdr – P. Pro 300-MP 1#
Alliant P. Pro 300-MP
Smokeless spherical magnum pistol powder
Utilize our premium performance, consistent quality new powder offerings the next time you pull the trigger
Manufactured in the USA
Improved velocity and density for more efficient metering and loading
Maximum velocity and performance in magnum handguns
Enables reloaders to duplicate certain factory loaded ammunition
Density designed for proper cartridge fit
Principal Purpose: Magnum Handgun/Pistol
Secondary Uses: .22 Hornet
WARNING: this product can expose you to chemicals which are known by the state of California to cause cancer and birth defects or other reproductive harm. for more information go to – www.P65Warnings.ca.gov
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.