WHAT DOES BLACKHORN 209 POWDER IN STOCK MEAN?

I have a CVA optima in stainless-steel. I also have the black horn 209 breech plug. I load one hundred grains by quantity of Blackhorn 209 that has a 250 grain Barnes bullet. I have discovered that you really should really use a very good primer. Tend not to utilize the primers manufactured for black powder as it's not black powder. I make use of t