Why, pray tell, are you wasting bullets and powder fireforming? All you need is 11 grains of Bullseye add cream of wheat to the base of the neck roll up a 22 patch and stick it in the neck compacting the concoction a bit and fire into the ground.....viola....instant case......perfect and no wear and tear on your 300 dollar barrel!Try it, you'll **** it! Regards, Rick.