This new IMR family product is “green,” burns clean and in most cases, results in more energy from each grain of powder.
With the slowest burn speed, IMR Blue is a magnum propellant in 12 gauge shotshells.
With an ideal burn speed for 1-1⁄4- and 1-3/8-oz. loads Data for 10 gauge, 16 gauge and 20 gauge also available, providing true magnum velocities and performance.
