The gun Matt Grunzweig is shooting is really unusual. It's a Beretta UGB25. It's a single barrel, break open, two shot semi automatic.
http://www.ugb25xcel.com/ . Beretta advertises it as the lowest-recoiling gun available. Good thing, 'cause Matt is about 6'1", and 120#. The torch is being passed. He's now beating me most of the time