About IMR propellants:

IMR powder has long been a favorite of seasoned reloaders. The IMR trademark, which stands for Improved Military Rifle powder, was created by DuPont in the 1930s. IMR, along with Hodgdon, Winchester, and GOEX, is now part of the Hodgdon Powder Company family of trademarks. Initially a rifle powder brand, IMR has expanded to include premium handgun, shotshell, and muzzle-loading powder. IMR reloading supplies continue to provide consistent consistency and power to everyone from varmint hunters to competition shooters.

 

IMR, never one to rest on its laurels, continues to develop new powder compositions that are less susceptible to weather and temperature variations, have faster burn times, and include additives that reduce copper bullet jacket fouling.
IMR is a firm that should be on your radar whether you're new to reloading or an experienced reloader looking for superior powder. Powders for anything from small-caliber ammunition to magnum rifle rounds are available in 1 pound canisters and 8 pound containers.