Hornady 050069 Lock-N-Load Powder Measure Multi Caliber 265 Grains Capacity RedHornady's Lock N Load powder measure offers flexible operation and widest range of use. The Lock N Load Powder Measure can handle 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 pistol cartridges to large magnums without having to purchase multiple powder measures. Includes rifle rotor and