Hornady Custom Grade Series Iii 2-Die Set 7.7 Jap .312"

The Hornady Custom Grade Series III 2-Die Set for 7.7 Japanese (.312") is built for reloaders who demand precision and durability in a rifle die set engineered to last decades. Whether you're handloading ammunition for a Arisaka or other 7.7 Jap–chambered rifle, this two-die setup delivers the tight tolerances and smooth operation that separate quality reloading gear from the rest. Hornady's reputation for meticulously finished dies is on full display here: every component is machined to exacting standards and finished to a level that supports consistent, accurate rounds over thousands of reload cycles.

Designed for reloaders who value reliability and ease of use, the Series III set includes both a full-length sizing die and a seating die—everything you need to process fired brass and produce loaded ammunition. The precision internal finish reduces friction and wear, letting you work smoothly through large batches without the binding or drag that can creep into lower-grade tooling. The Sure-Loc lock rings feature wrench flats, giving you solid, repeatable positioning and adjustment every time you set up the die on your press. The new Zip Spindle design adds another layer of convenience, while the expander is polished to a mirror finish for reliable, smooth case mouth preparation.

Hornady backs the Custom Grade Series III with a lifetime guarantee against breaking or wearing out under normal reloading use—a promise that reflects the material quality and manufacturing precision built into every die. This is the kind of equipment that pays dividends over time: buy it once, use it correctly, and it will outlast you.

Key Features

• Full-length sizing die and seating die for complete ammunition processing
• Premium internal finish reduces friction and ensures smooth operation
• Sure-Loc lock rings with wrench flats for precise, repeatable die adjustment
• Polished elliptical expander for reliable case mouth expansion
• New Zip Spindle design for improved ease of use
• Includes convenient die box for storage and organization
• Lifetime warranty against breakage or wear under normal use

Specifications

Caliber	7.7 Japanese
Bullet Diameter	.312"
Die Count	2 dies (full-length size and seating)
Series	Custom Grade Series III
Manufacturer	Hornady

Frequently Asked Questions

What dies are included in this 2-die set?

The set includes a full-length sizing die and a seating die, covering the primary operations for reloading 7.7 Japanese rifle ammunition.

Is this 7.7 Japanese die set compatible with my reloading press?

The dies are designed to fit standard single-stage, turret, and progressive presses with .75–14 threads. Confirm your press compatibility before ordering.

What makes the Series III different from earlier Hornady Custom Grade dies?

The Series III features the new Zip Spindle design and Sure-Loc lock rings with wrench flats for improved adjustment precision and ease of use compared to earlier versions.

Does Hornady warranty this die set?

Yes. Hornady guarantees the Custom Grade Series III against breaking or wearing out under normal reloading use for the lifetime of the product.