kocka Primitív halom 8x57irs wiki Elbűvölő Kosciuszko Susteen
7.92 x 57 mm - Wikimedia Commons
Why do bullets have such strange diameters? E.g. 7.62mm, 7.92mm, 5.56mm. How did they decide on these instead of something like 7.5mm, 8mm, or 6mm respectively? - Quora
Fanzoj Sidelock double barrel rifle, in cal. 8x57IRS - Johann Fanzoj