0217172357b2 February 23, 2017 at: 1500 × 844 In: Modern Personal Defense Weapon Calibers 008: The 10x25mm Norma Automatic ← Previous Next → Left to right: .38 Special, 9x19mm, .30 Remington, upon which the 10mm was based, 10x25mm Norma Automatic, .45 ACP