So in that regard the MAC firing that cartridge, has a dependability advantage about the UZI, significantly with 115 gr ammo I've found, made by Rem., Get, Fed, & S&B during the last 15 decades. The Israeli military 9×19 ammo, uses the 123 gr. bullet that has a sharper pressure curve, with it’s peak nearer the breech and much more recoil impulse