Lee Bullet Sizer & Punch .430"

The Lee Bullet Sizer & Punch .430" is a precision reloading tool designed for handloaders and ammunition manufacturers who work with cast bullets and gas-checked rounds. This compact sizing die fits seamlessly into any Breech Lock–enabled reloading press, making it an essential component for shooters committed to consistent, high-quality ammunition production. Whether you're loading for revolver cartridges or specialty rifle rounds, this tool addresses the critical need for uniform bullet diameter and proper gas-check seating—factors that directly impact accuracy and chamber fit.

Engineered by Lee Precision, the .430" bullet sizer works in conjunction with the Breech Lock Bullet Sizer Kit and utilizes the proven Lee Liquid Alox lubrication system to size cast bullets without shaving or deformation. The integrated punch mechanism seats and crimps gas checks in a single operation, reducing setup time and improving repeatability. At just 0.15 lbs and measuring 3.7 x 0.85 x 4.95 inches, the compact die footprint saves valuable press space while delivering the reliability and durability that Lee Precision is known for in the reloading community.

Reloaders working with .430" cast or swaged bullets—particularly those loading lead-core ammunition for handguns and older rifle calibers—will find this sizer indispensable for achieving consistent velocity and precision. The gas-check seating capability prevents bullet separation and gas leakage, critical for maintaining pressure curves and accuracy downrange. Requires a Breech Lock Loading Kit and Lee Liquid Alox lubricant; compatible with all Breech Lock–compatible Lee and third-party reloading presses for maximum flexibility in your ammunition production workflow.