Xcommercialfisherman-7mm-describes nothing but a caliber.When most people say 7mm they usually mean the 7mm rem mag.The 7mm-08 is basically the 308 cartridge case with a 7mm bullet.For deer sized game it is probably one of the best cartridges available as it has more than enough power for any deer, shoots reasonably flat and has mild recoil.The 7mm rem mag has a larger case but shoots flatter and carries more power making it more suitable for elk and moose as well as deer.It also has more recoil than the 7mm-08.The reason that I prefer the 7mm rem mag over the 30-06 is that it shoots flatter and carries more energy especially at longer distances.It's recoil is slightly more than the 30-06 but is easily tolerated by most people.