WHAT DOES BLACKHORN 209 POWDER IN STOCK MEAN?

Blackhorn powder is palms down the cleanest and best shooting powder that I've ever utilized! I am capturing 80grn by volume with hornady xtp 240s and they're tack motorists at 100yds! I have not had a misfire using Blackhorn 209 and Winchester W209 primers!Blackhorn 209 powder, federal, cci and winchester primers is often transported from our ware