Description
The 8×57 IRS, also known as the 8mm Mauser Rimmed, is regarded by hunters and shooters as one of the most capable and versatile cartridges in its class. Developed as the rimmed variant of the 8×57 IS, which was introduced in Germany in 1905, it retains the proven ballistic performance of the original design.
The key difference is the rimmed case (R for “Rimmed”), which makes the 8×57 IRS especially well‑suited for break‑action rifles such as drillings, double rifles, and other traditional hunting firearms. This development was intended to provide hunters with a powerful and flexible cartridge optimized for classic European sporting rifles.

