Hornady Lock-N-Load Powder Measure - Offering the most flexible operation and widest range of use, the Lock-N-Load Powder Measure handles charges of .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 handloaders the ability to load everything from small handgun cartridges to large magnums without having to purchase multiple powder measures. The Lock-N-Load Powder Measure includes a rifle rotor and metering insert, along with two drop tubes for .204 to 45 caliber. A handgun rotor and inserts are sold separately. Precision Tolerance With Only .002in Clearance Between Drum And Rotor Largest Charge Range In The Industry Push-Button Release Function Multiple Mounting Methods Adjustable Tension