Yes.. on my original disc I have the lehigh breech plug, and then a disc extreme bolt with the Lehigh adapter on the front of the bolt. All you do is drop a primer in the adapter and close the bolt. After you fire, open the bolt and turn the rifle to the side and the primer calls out. In hundreds of rounds, I have had only one primer that would not come out. I had to get a pocket knife and pull it backward into the adapter better. But it was a primer that was very old that had been sitting in a plastic straight line capper I never use. I was shooting, found that straight line capper in the box and decided to shoot off the fifteen primers in it. And they had to be a couple years old and had been banging around in that shooting bag for years now.
Sabotloader helped to set me up. And I am sure he will see this thread and correct comment on it also.