7.65×53mm Argentine

The 7.65×53mm Argentine is a rimless, bottlenecked rifle cartridge Paul Mauser designed for the Argentine government, which put it into service in 1889 for its Mauser-pattern rifles and carbines. It belongs to the same family of small-bore, smokeless Mauser cartridges as Germany’s own 7×57mm and 7.92×57mm rounds, sharing their rimless bottleneck case design intended for reliable feeding from a box magazine. The cartridge is also known as 7.65×53mm Mauser, after the firm that designed and originally produced it rather than the country that adopted it.

Beyond Argentina, the round saw service with several other Latin American and international forces across the first half of the twentieth century, including use in the Chaco War between Bolivia and Paraguay and the Ecuadorian–Peruvian War, and it remained in military service into the 1970s in some countries. Its 12.01 mm base diameter and 53.6 mm case length place it in the same general size class as other full-power rimless Mauser sporting and military rounds of the era.

This page’s case and pressure dimensions come from C.I.P.’s published standard and are recorded as verified. Two historical factory bullet weights, 155 and 174 grains, are recorded from a published loading reference, but no test-barrel length is stated for either load’s velocity, so no velocity or energy figure is recorded for this cartridge. No photograph exists of the round being fired or of the Mauser rifles chambered for it on this site; the image shown here is of loaded ammunition only.