These reusable components are the perfect way for a shooter to get some inexpensive practice when they don't have time to go to the range. Reusable molded plastic training components are a great tool for short-range practice up to 25 feet. Bullets and cases are sold separately and can be reused several times. Simply load the plastic case with a large pistol primer, seat the plastic bullet inside the case and fire at safe backstop. This is not loaded ammunition and the primers are not included. Recommended for use with pistols only. CAUTION: Do not use any propellant powder when assembling these cartridges. Cases are powered by the primer only.