Included with my last parts order from Jimenez was a list of recommended ammo as follows: RECOMMENDED TYPES OF AMMO 22LR: 40 gr FMJ (Full metal jacket) / HP (Hollow point) -CCI Stinger -CCI Mini mags -Federal Target Load -Federal Game Shock -Winchester Super X -Ball or Round nose / Brass Casing 25ACP: 40 gr FMJ (Full metal jacket) -Remington UMC -Federal American Eagle -Independence -Mag Tech -Ball or Round nose / Center Fire / Brass casing 380/ T380 & LC380: 95 gr FMJ (Full Metal Jacket) -Federal American Eagle -Remington -Independence -Mag Tech -Speer Lawman -Ball or Round nose / Center Fire / Brass casing 9mm: 115 gr FMJ (Full Metal Jacket) -Federal American Eagle -Remington -Independence -Mag Tech -Speer Lawman -Self Defense Round: Remington UMC -Ball or Round nose / Center Fire / Brass casing -We do NOT recommend the use of STEEL or ALUMINUM casing -ALWAYS read your instruction manual for weapon requirements or contact a professional for more information.