0809160039b_HDR August 8, 2016 at: 1500 × 844 In: Be Ready for the Western Front Offensive of 1919 with the WWI Pedersen Device ← Previous Next → Left to right: .30 M1906 Ball, .30 Pedersen as would have been issued in 1919, .30-18, 7.65 French Longue, and modern production .32 ACP and .45 ACP for scale. Note how incredibly similar the 7.65 French Longue and .30-18 cartridges are.