Lyman H&I Bullet Sizing Die .355"

The Lyman H&I Bullet Sizing Die .355" is a precision reloading tool designed for handloaders who demand consistent results when processing cast or swaged bullets. This sizing die accommodates .355" diameter projectiles—common in 9mm and similar caliber applications—and features Lyman's proven engineering for reliable bullet preparation. The H&I line represents a specialized approach to ammunition reloading, where dimensional consistency directly impacts accuracy and reliability downrange.

Built with a hardened interior and tapered mouth geometry, this sizing die ensures proper bullet alignment during the sizing process, maintaining cylindrical shape and dimensional uniformity across your batch. The 90-degree hole spacing improves setup efficiency on standard reloading presses, reducing setup time and minimizing alignment errors. For handloaders running high-volume production—whether preparing ammunition for duty carry, competition, or training—dimensional consistency at this stage translates directly to improved cartridge reliability and performance on demand.

This die is engineered for serious reloaders who understand that cast bullet ammunition requires precise sizing to meet pressure specifications and function reliably in semi-automatic platforms. The .355" diameter fits cartridges like 9mm Luger, .38 Super, and related rounds where dimensional control prevents feeding issues and maintains chamber fit. Whether you're establishing a dedicated ammunition production line or supplementing commercial stock with custom-loaded alternatives, the Lyman H&I sizing die delivers the precision fixture needed for professional-grade results.