6.25 x 25 CBJ (l.) a company called CBJ Tech has developed an unusual 6.5 x 25mm concept. The CBJ MS weapon andits accessories.
I had also observed that the gun's ballistics could be transformed by adapting it to fire the 6.5 ×25 CBJ cartridge. He thought this idea sounded.
The 6.5 × 25mm CBJ is a pistol cartridge designed for the CBJ -MS personal defence weapon. Capable of use in rebarreled Parabellum firearms, the Bullet diameter : in (4.0 mm). 9mm Lehigh "Xtreme Penetrator" Ammo Review