IMR 7828 SSC SMOKELESS GUN POWDER

IMR powders have exactly the same burn rate as typical 7828 and uses a similar facts. Having said that, due to Tremendous small kernels, metering is just about as good to be a spherical powder. This allows as many as 4% far more powder space in the case and in lots of hundreds yields more velocity than standard 7828. This kind of loads are marked b