WHAT DOES BLACKHORN 209 POWDER IN STOCK MEAN?

Blackhorn powder is hands down the cleanest and most effective taking pictures powder that I've at any time made use of! I am shooting 80grn by quantity with hornady xtp 240s and they're tack motorists at 100yds! I haven't experienced a misfire applying Blackhorn 209 and Winchester W209 primers!But whether or not you purchase from Hodgdon or Wal-Ma