IMR

IMR 3031 Powder

A medium burn speed propellant with many uses, IMR 3031 has long been a favorite of 308 Match shooters using 168-grain match bullets. It is equally effective in small-capacity varmint cartridges from...

IMR 4064 Powder

IMR 4064 is a medium-range burn speed powder and is one of the most versatile propellant in the IMR line, used for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Super...

IMR 4166 Powder

IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. It is an extruded powder with a perfect burn speed for cartridges like 308 Winchester, 7.62mm...

IMR 4198 Powder

This fast-burning rifle powder gives outstanding performance in cartridges like the 222 Remington, 221 Fireball, 45-70, and 450 Marlin. It is also outstanding in cartridges like the 444 Marlin and 7...

IMR 4227 Powder

IMR 4227 is a medium burn speed, magnum pistol propellant. If a pistol says Magnum, IMR 4227 is the choice for true magnum velocities and performance. In rifles, this powder delivers excellent...

IMR 4350 Powder

IMR 4350 is a medium- to slow-burn rate propellant and is the number one choice for the new short magnums, both Remington and Winchester versions. For magnums with light- to medium-bullet weights,...

IMR 4831 Powder

IMR 4831 has a slightly slower burn rate speed than IMR 4350. It provides top velocities and performance with heavier bullets in medium-sized magnums. Made in Canada.