Lyman H&i Sizing Die .314

• .314 sizing diameter: Sizes cast bullets to a consistent .314 inch diameter, helping match bullet fit to the bore for better accuracy and more uniform pressure.
• Body sizing operation: This die is built to size the bullet body rather than perform multiple press operations, making it a practical choice for dedicated cast-bullet loading workflows.
• H&I die design: Used in Lyman lube-sizing equipment, the H&I format lets the bullet be sized while supporting proper lubrication, which helps maintain clean, repeatable bullet preparation.
• Steel construction: A steel sizing die stands up well to repeated use and keeps its dimensions stable, which matters when producing large batches of cast bullets.
• Made in the USA: Domestic manufacture is paired with Lyman’s long-established reloading focus, giving this die the straightforward, workshop-oriented build expected for routine bench use.

About the H&I Sizing Die Series

Lyman H&I Sizing Dies are part of the company’s long-running cast-bullet reloading range, intended for reloaders who want precise control over bullet diameter before loading. In Lyman’s lineup, these dies sit alongside lube-sizing tools and bullet-casting equipment, making them especially relevant for shooters who cast their own bullets for handgun and rifle use. Their role is simple but important: bring a cast bullet to the correct finished diameter so it fits the firearm properly and performs consistently.

The series is designed around practical bench use rather than complexity. Improved 90° hole spacing is intended to make bullet lubrication easier, including with harder modern lubricants, while the tapered mouth helps guide bullets into the die smoothly. Lyman also uses a hardened interior to support alignment and maintain a consistent cylindrical shape during sizing. Because bullet fit is critical in cast-bullet shooting, the H&I range is offered in many diameters to suit common rifle and pistol calibers. For reloaders who want repeatable bullet preparation and dependable compatibility with Lyman lube-sizing equipment, this series remains a practical part of a traditional cast-bullet setup.

About the Lyman H&i Sizing Die .314

The Lyman H&i Sizing Die .314 is a dedicated bullet sizing die for cast-bullet reloaders who need a finished diameter of .314 inch. That makes it particularly useful where correct bullet-to-bore fit is essential for accuracy, clean shooting and consistent ballistic behavior. In cast-bullet loading, even a small change in bullet diameter can affect chambering, gas sealing and fouling, so a die with a fixed target size has a clear practical role.

This model uses body sizing, which suits reloaders working with established lube-sizing processes rather than general-purpose cartridge case loading. Its steel construction supports dimensional stability over repeated use, an important point when processing batches of bullets where consistency matters more than speed alone. As part of Lyman’s H&I system, it is intended for use in a workflow that combines sizing with bullet lubrication, helping produce bullets that are both correctly dimensioned and ready for loading.

The die is also a straightforward fit for traditional loading benches thanks to its standard configuration and 7/8"-14 thread press compatibility. For the handloader focused on cast bullets rather than jacketed projectiles, this model offers a simple, purpose-built way to standardize bullet diameter and support more repeatable ammunition assembly.

About Lyman

The Lyman Gun Sight Company began in 1878 in Middlefield, Connecticut, and the brand has remained closely tied to practical shooting equipment ever since. 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 focus helps explain why the company remains well known among reloaders who build complete bench setups rather than buying isolated tools.

Lyman acquired the Ideal reloading-tool business in 1925, which strengthened its position in handloading equipment and helped shape the company’s long association with cast bullets and reloading tools. Today, Lyman Products is headquartered in Middletown, Connecticut, and its catalog continues to reflect that mix of traditional shooting knowledge and workshop-oriented design. In products such as sizing dies, that background shows up in tools built for repeatable use, straightforward setup and compatibility with established reloading methods.

Main Features

• Manufacturer: Lyman
• Made in: USA
• 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: 7.98 mm
• Bullet diameter: 314.00 inch

Warranty

Lyman provides a 2-year warranty for this sizing die. This stated warranty period gives the buyer a clear, time-defined level of coverage rather than an open-ended policy description.