before i knew better i got some bh and loaded it in my mk85 using the 209 conversion breech kit in it.i was shooting 100gr behind a 300gr dead center bullet, i shot about 8 rounds. i was using cci 209m primers. i never had a hangfire or a misfire. what bothered me was the tremendous amount of backblast gases around my face.then i sent a post in to modern muzzleloader and also called knight. i found out quickly that i had the wrong breechplug for this powder. i loved the way it cleaned up and how accurate i was.i am now looking to get a triumph so i can be more versatile in what i shoot. i sure am sentimental about my ol mk85 tho.