"The 7 X 57 Mauser round performs (when loaded to potential) exactly like a smaller edition of the Springfield (.30-'06) cartridge. It propels bullets of the same sectional densities (but 20 to 30 grains lighter) to very similar velocities, and the trajectories are virtually identical.
Like the .30-'06, it is a thoroughly dependable round that gets the job done efficiently without any great fuss or furor.The '06 is more powerful, and may be preferable on the biggest beasties. But for 90% of all the big game hunting that most do, the 7mm Mauser is ample. It is one of my favorite cartridges."

Quoted from "Hunting Rifles and Cartridges" By Finn Aagaard, a lifetime professional hunter and gun enthusiast