The Lock-N-Load Powder Measure can handle charges of 0.5 to 265 grains of powder when paired with the appropriate insert and rotor. Metering inserts can be changed with the push of a button, giving users the ability to load everyone from small pistol cartridges to large magnums without having to purchase multiple powder measures. Includes rifle rotor and metering insert. Pistol rotor and inserts sold separately.