7.5 FK
The 7.5 FK (C.I.P.), also known as the 7.5 FK BRNO or the 7.5x27mm, is a bottlenecked rimless centerfire automatic pistol cartridge developed by the Czech firearms and ammunition manufacturer FK Brno Engineering s.r.o. == History == The 7.5 BRNO was developed between 2009 and 2014, for the specific purpose of providing pistols the ability to engage combatant targets at a range of between 75–150 metres (82–164 yd) while retaining more kinetic energy at that range than a 9×19mm Parabellum cartridge can generate at the muzzle/point blank range.