The rifle and the back pressure completely destroy the cap. You simply turn the rifle to the side and small pieces of cap fall out. Actually the breech floor also gets coated in a black soot like substance that I use a Q tip to remove.

I will say the swabbing was easy. No crud ring what so ever. I really think I could have just shot and shot. Next time I will try some 3f Triple Seven and see how that behaves. Also I noted when I cleaned the rifle, the breech plug turned right out. So I wonder how tight I really had it seated.