7×57 Spanish Mauser
This round was developed in Germany by Mauser factory for their improved rifle in 1892. It was adopted by Spanish army in 1893 along with Mauser bolt-action military rifle, and since then it was also adopted by several other South American countries as well. As a military round, this cartridge gradually became obsolete after WW2, but it is still chambered in several models of hunting rifles and thus it is still manufactured for civilian consumption (mostly loaded with hunting-type rifles).
Designation Bullet weight, g Muzzle velocity, m/s Muzzle energy, J Comments
11.2 700 2760 with round-nose FMJ bullet
9.07 850 3280 with pointed FMJ bullet