Hrndy Pistol Rotor & Metering Assy

The Hornady Pistol Rotor & Metering Assembly (HR050128) is a precision powder measure component engineered for reloaders who demand tight charge weight tolerances. This rotor and metering assembly fits directly into Hornady's Lock-N-Load powder measure system and provides a smaller metering chamber designed to handle the most exacting handload specifications across a range of charge weights from 0.5 to 17 grains.

The reduced chamber volume delivers measurably improved precision in powder charge dispensing compared to standard metering dies, making this assembly a critical upgrade for serious handloaders focused on load development and ammunition consistency. Whether working with light pistol loads or heavier magnum charges, the rotor mechanism meters powder smoothly without double-charging or bridging—two of the most common failures in less-refined powder measure designs. The assembly integrates seamlessly with the Lock-N-Load platform, allowing quick swaps between different metering configurations without breaking down the entire measure.

This component is ideal for handloaders who prioritize load repeatability and shot-to-shot consistency—critical for competitive shooters, precision rifle builders, and anyone developing custom ammunition tailored to specific firearms. The rotor assembly represents Hornady's commitment to quality control in the reloading process; tighter charge tolerance directly translates to tighter shot groups downrange and more predictable ballistics. At 1.38 lbs and compact dimensions, it's designed as a drop-in replacement for existing Lock-N-Load users.