IMR 7828 Smokeless Powder Slow-Burn Propellant Overview
IMR 7828 Smokeless Powder Slow-Burn Propellant;
This IMR 7828 is the BIG magnum powder.
This slow burner gives real magnum performance to the large over-bored magnums,
such as the 300 Remington Ultra Magnum, the 30-378 Weatherby Magnum,
and also the 7mm Remington Ultra Magnum.
Most magnum aficionados highly regard the 7828 also.
IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data.