North American Hunting Club November 2012 magazine just had an interesting article written by Richard Mann regarding ballistic tests from a bunch of deer hunting cartridges as well as post mortem results. Here's a link to get you to the on-line magazine.

http://www.huntingclub.com/digitalis...nah/index.html

The conclusion was that it really doesn't matter which cartridge you use so long as it is legal and the shooter is proficient with it.