7.5 FK AMMUNITION
7.5 FK calibre ammunition is a proprietary calibre designed and produced by FK BRNO Engineering s.r.o. This calibre was designed specifically to bridge the gap between standard handgun and carbine rifle calibres in terms of power, efficency, range, and accuracy. While at the same time its compact enough to be used in a standard size automatic pistol with a 5- or 6-inch barrel, and when used in pistols with FK BRNO’s patented recoil attenuating system, it has recoil comparable with calibres with less than half the kinetic energy. The following are calculations of conventional ballistic data for the 7.5 FK cartridge.