The Hornady Lock-N-Load Pistol Micrometer Metering Insert (For New Rotor) is a precision-machined steel accessory designed for fine incremental volume adjustments during handgun propellant charging. Measuring approximately 3.65 inches (92.7 mm) in length and weighing between 0.265 lbs and 0.30 lbs (120 g to 136 g), this mechanical insert fits directly into the smaller cavity of the Hornady Lock-N-Load handgun/pistol rotor and metering assembly. It provides precision dispensing for low-weight powder charges ranging from 0.5 grains up to 17 grains across calibres such as 9mm Luger, .38 Special, .40 S&W, and .45 ACP without requiring electrical power or batteries.

Key Features

• Indexed Reference Markings: Features laser-etched micrometer graduations along the barrel body, allowing reloaders to record precise numerical settings for distinct charge recipes and return to them later without trial-and-error adjustment.
• Push-Button Quick Swapping: Integrates with the Hornady Lock-N-Load push-button release mechanism, enabling users to swap metering units in and out of the powder measure assembly without losing verified charge settings.
• Optimised Powder Compatibility: Engineered for consistent mechanical metering with small extruded, ball, and spherical propellants within sub-17-grain volumes.
• All-Steel Construction: Manufactured entirely from precision-machined steel for bench-mounted reloading durability.

Specifications

• Manufacturer SKU: 050129
• Charge Range: 0.5 grains to 17 grains
• Overall Length: Approximately 3.65 inches (92.7 mm)
• Weight: 0.265 lbs to 0.30 lbs (120 g to 136 g)
• Material: Precision-machined steel
• Rotor Fitment: Hornady Lock-N-Load Handgun/Pistol Rotor ("New Rotor" cavity pattern)
• Operation: Manual/mechanical

Who is the Hornady Pistol Micrometer For New Rotor for?

• Handgun cartridge reloaders — requires an operating envelope of 0.5 grains up to 17 grains, which this pistol powder measure micrometer insert accommodates to deliver fine volume metering for low-weight handgun propellants.
• Progressive press reloaders — utilizes a compact 3.65-inch steel body that integrates into Hornady Lock-N-Load AP progressive press handgun rotor assemblies to allow rapid push-button unit swaps without losing indexed settings.

Less suitable for: Propellant loads exceeding 17 grains; charging larger volumes requires a standard rifle rotor assembly paired with a rifle micrometer metering insert.