BLACKHORN 209 POWDER IN STOCK NO FURTHER A MYSTERY

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 which has a 250 grain Barnes bullet. I have found that you really really should use a great primer. Tend not to utilize the primers manufactured for black powder as this isn't black powder. I use the CCI magnum