7.5×55mm Swiss

The 7.5×55mm Swiss or GP 11 (or unofficially 7.5×55mm Schmidt Rubin) is a cartridge developed for the Swiss Army by Lt. Col. Eduard Rubin for rifles based on Rudolf Schmidt's action design. The ammunition used by the Schmidt-Rubin Model 1889 rifle was one of the first to use 7.5 mm copper jacketed rounds similar to those used today. The GP90 7.5×53.5mm round designed by Colonel Rubin was revolutionary in that the most popular military calibres used in Europe at the time were around 12.7 mm as opposed to 7.5 mm of the Schmidt-Rubin ammunition. Oddly enough the round was "paper patched" meaning the actual bullet was wrapped around by a piece of paper, much like cotton patches were placed around the bullet of a musket. Paper patching the round was supposed to aid in the gas seal of the bullet.

Read more about 7.5×55mm Swiss:  Gallery

Famous quotes containing the word swiss:

    Realistic about how much one person can accomplish in a given day, women expect to have to make some trade-offs between work and family. Families, however, have absorbed all the stress and strain they possibly can. The entire responsibility for accommodation is taking place on the home side of the equation.
    —Deborah J. Swiss (20th century)