I own a Knight Disc .50, a Wolverine LK-II .50 caliber and a Wolverine (stainless) LK-93 .50 caliber. And you're right, the blow back out of them is terrible. BUT that never really concerned me too much. I am waiting for the LK-93 to arrive at the house as I just purchased it (take it easy people I know I did not need it, but give me a break). I also owned a Knight Disc Extreme with the stainless MHC barrel. I sold that and now wish I had not. But that was a boring rifle. It just drilled the bulls eye for the little I shot it.