POWDER MEASURE Lock-N-LoadHornady Lock N Load Powder Measure efficiency and accuracy The Lock N Load powder measure offers the most flexible operation and the widest range of any powder measure. It ranges from . 5 265 grains of powder (special metering inserts and rotor required). Metering inserts can be changed with the push of a button. Comes with standard rotor and metering insert. Features Largest Charge Range in the Industry Go from . 5 grain to 265 grains by simply