The .375 Viersco Magnun (9.5 x 87.5mm) is a rimless, magnum-length rifle cartridge designed for the hunting of large dangerous game and long-range competition shooting. It is designed to provide an increase in performance over other .375-class cartridges. This is accomplished by engineering the case with a wider than typical .532" or .640" magnum base, increasing case volume. Thus, long range performance is even greater than the .408 Chey-Tac or .375 Snipe-Tac.