Lyman H&i Sizing Die .360

• .360 sizing diameter: brings cast bullets to a consistent final diameter, which helps maintain fit in the bore and supports more uniform accuracy.
• Body sizing operation: designed specifically for bullet sizing rather than case work, making it a practical choice for cast-bullet reloaders using a dedicated lube-sizer setup.
• Hardened steel construction: the steel die body stands up to repeated use and helps preserve dimensional consistency over long loading sessions.
• Tapered mouth and hardened interior: supports smoother bullet entry and alignment, helping the bullet keep a true cylindrical shape during sizing.
• Standard 7/8"-14 compatibility: fits common press threading, so it integrates easily into established reloading benches without special adapters.

About the H&I Series

Lyman H&I sizing dies are part of the company’s long-established cast-bullet reloading range, aimed at shooters who want more control over bullet fit, lubrication and finished consistency. In Lyman’s lineup, these dies sit within the bullet-casting and bullet-finishing side of reloading rather than cartridge case preparation, making them especially relevant to handloaders who cast their own projectiles for rifle or handgun use.

The series is built around a simple purpose: size cast bullets to the required diameter while working with Lyman lubricating and sizing equipment. Proper bullet diameter is a key part of cast-bullet performance, and the H&I design addresses that with a tapered mouth for easier alignment and a hardened interior intended to maintain a true cylindrical form. Lyman also uses 90° hole spacing on the improved sizing dies to make bullet lubrication easier, including with harder modern lubricants. The result is a practical, workshop-focused die family for reloaders who value repeatable bullet dimensions and straightforward compatibility with established cast-bullet loading methods.

About the Lyman H&i Sizing Die .360

The Lyman H&i Sizing Die .360 is a dedicated bullet-sizing die for reloaders working with cast bullets that need a .360 finished diameter. In cast-bullet loading, small changes in bullet fit can affect leading, consistency and downrange accuracy, so a die like this serves an important role in producing ammunition that matches the intended bore and load combination more closely.

This model uses body sizing, which means it is made specifically for shaping the bullet itself rather than resizing cartridge brass. That makes it well suited to reloaders who already use a Lyman lubricator-sizer and want a straightforward way to finish bullets to a repeatable dimension before loading. The steel construction supports long service life on the bench, while the standard adjustment style keeps setup familiar for users who prefer conventional tooling without extra bushings or special mechanisms.

In practical use, the die’s value is consistency. A correctly sized cast bullet can seat more predictably, carry lubricant more effectively and behave more uniformly in the barrel. The tapered mouth and hardened interior used in Lyman’s H&I sizing die design help guide the bullet into the die and maintain its shape during the sizing process. Combined with standard 7/8"-14 thread compatibility, this makes the die an easy fit for reloaders building or expanding a cast-bullet loading setup around common press standards.

About Lyman

The Lyman Gun Sight Company began in 1878 in Middlefield, Connecticut, and the brand has long been associated with practical tools for shooters and reloaders. Lyman makes equipment and accessories for shooting and reloading, with product lines that include reloading dies, presses, bullet-casting equipment and gun sights. That broad involvement in both sighting and handloading equipment gives the company a strong connection to traditional workshop-based shooting disciplines.

Within the reloading category, Lyman acquired the Ideal reloading-tool business in 1925, a step that helped establish its place in handloading equipment. The company remains especially well known for tools used by cast-bullet shooters, where durability, straightforward operation and compatibility with established loading methods matter more than unnecessary complexity. Lyman Products is headquartered in Middletown, Connecticut.

Main Features

• Manufacturer: Lyman
• Made in: USA
• Category: Bullet Sizing
• Die operation: Body sizing
• Pack size: Single
• Die type: Standard
• Bushing: No
• Case type: Universal
• Sizing die material: Steel
• Material: Steel
• Adjustment: Standard
• Press compatibility: Standard 7/8"-14 thread
• Bullet diameter: 9.14 mm
• Bullet diameter: 360.00 inch

Warranty

Lyman covers this product for 2 years. That period suits a bench tool intended for regular reloading use and supports long-term use in a cast-bullet setup.