I was at a gun store yesterday and saw a .357 Magnum automatic revolver. Let me tell you, this was one of the coolest looking things I've ever seen! It is made by an Italian company that I'm not familiar with, and was going for just under $1,000. I was told that the company has been making this model for something like 60 years. The idea is that you pull the trigger once for double action, then every round after that is already cocked for single action. Necessary? No. Cool? YES!