Originally Posted by Cyrano

More on Austrian rifles; the original caliber was 8X50R, the left hand round in the picture. It used a 244 gr round nosed bullet. Despite the '8mm' designation, the bore diameter was around .329". Around 1935 Hungary developed a larger capacity 8X56R round firing a 208 gr spitzer bullet at a higher velocity and giving a much flatter trajectory. That's the round on the right. The recoil of the 8X56 in the short rifles is 'noticable'.