Sig Sauer® designed Elite Performance™ FMJ Handgun Ammo to ballistically match SIG V-Crown™ personal defense ammunition, providing an economical method of handgun training without having to adjust your handgun's sights when switching from one ammo to the other. Each corresponding load uses bullets of the same weight and shape, as well as the same powder charges to ensure identical point of impact, recoil, and cycling as your personal defense load. Sig Sauer Elite Performance FMJ Handgun Ammo is manufactured to SAAMI standards, with brass cases and copper jacketed, lead core bullets.