I just signed up on a Shark Jaws .338 can... David makes good stuff.
The Shark is quiet, plus you can buy different back caps to adapt to different thread sizes.
Awesome stuff. Great fellow to deal with if you need something for your can. I have had a tiger shark for over a year now. Accurate, repeatable, and pretty damn quite. I have a shark pending now. Can't wait till his 223 can come out.