The Field Pistol® was designed totally and exclusively around the 7.five FK® cartridge, and to meet the first necessities for that cartridge: minimal recoil, managed muzzle leap, useable with one hand correctly, and small enough and light-weight sufficient being concealable if necessary including the opportunity to have in shoulder holster, https://75fkbrnopistol60258.answerblogs.com/39864250/fascination-about-40-s-w-option