Lee Bullet Sizer & Punch .356"

The Lee Bullet Sizer & Punch .356" is a precision reloading tool engineered for shooters who cast their own bullets or work with cast projectiles. This specialized die sizes .356-inch diameter bullets to exact specifications while simultaneously seating and crimping gas checks—three critical operations consolidated into a single, efficient component. Designed by Lee Precision, a respected manufacturer in the reloading community, this bullet sizer delivers the consistency required for accurate, repeatable ammunition production.

This die integrates seamlessly with Lee's Breech Lock system, allowing it to fit any Breech Lock-enabled reloading press without modification. The .356" specification accommodates 9mm handgun cartridges and related calibers that use undersized cast bullets. When combined with Lee Liquid Alox lubricant and the Breech Lock Loading Kit (sold separately), the sizer conditions cast bullets to precise tolerances, minimizes friction during seating, and applies uniform gas check crimps—each step essential for reliable chambering and consistent ballistic performance. The compact design (3.7 x 0.85 x 4.95 inches) positions the die for comfortable operation within standard press geometry.

Cast bullet reloaders benefit most from this tool, particularly those who prioritize cost reduction without sacrificing accuracy. Handloaders producing 9mm ammunition in volume, competitive shooters fine-tuning cast loads for target work, and ammunition enthusiasts exploring alternatives to jacketed projectiles will find this sizer addresses the dimensional inconsistencies inherent in cast bullets. Gas check installation ensures reliable feeding and reduces leading in rifle and pistol barrels alike.

Lee Precision's Breech Lock die system has established itself as a durable, affordable platform for small-scale ammunition production. The modular approach means operators can build a complete reloading setup incrementally, selecting dies and accessories matched to their specific cartridge requirements. This bullet sizer represents a focused investment in cast bullet preparation—a process that, when executed properly, yields ammunition quality on par with factory loads at a fraction of the cost.