SS, i have used small pistol mag primers in my 223 and 300 bo rounds for practice. One of my most accurate 223 loads out of a sav 10 was with pistol primers. Had a 72% one shot kill ratio on ground squirrels at 425 yards. Sold that rifle like the idiot i am!
Thanks Deerstalker.I have about 3000 of them and no other use.