Redding Premium Handgun Die Set .40 S&W / 10Mm Auto

The Redding Premium Handgun Die Set for .40 S&W / 10mm Auto is a three-die reloading system built for shooters who demand consistency and durability, whether you're loading a few boxes for the range or running high-volume production. This set pairs a titanium carbide sizing die with a newly engineered expander die and a seating die, each designed to work seamlessly in both single-stage and progressive presses. If you're serious about handgun ammunition quality and precision, this is the kind of die set that pays for itself through uniform, reliable reloads.

The heart of this system is Redding's redesigned expander plug, now coated in titanium nitride (TiN) for superior hardness, slickness, and longevity. That TiN coating is more than a marketing angle—it meaningfully reduces brass buildup during the expansion stroke, a real advantage if you're processing volume. The expander itself works through a thoughtful sequence: a radiused base eases entry into the case mouth, a parallel section expands and trues the case ID to create a consistent bullet bearing surface, a small step aligns the bullet with the cartridge centerline, and a final flare opens the case mouth enough to seat cast bullets without shaving lead. That's engineering you can feel in every press stroke.

The seating die includes a bullet seating micrometer for precise, repeatable seating depth control—the kind of repeatability that tightens groups. The die accommodates either taper or roll crimp as appropriate for your load, and all three dies in the set feature enhanced lead-ins for smooth feeding in progressive operations. If you're loading .40 S&W or 10mm Auto with attention to detail, this Redding set will reward your effort with uniform ammunition.

Key Features

• Titanium carbide sizing die for durability and consistent case dimensions
• Titanium nitride-coated expander plug reduces brass buildup and improves lubricity
• Expander design with radiused base, parallel section, centering step, and cast-bullet flare for precise internal case preparation
• Seating die with bullet seating micrometer for repeatable seating depth control
• Taper or roll crimp option built into seating die
• Enhanced lead-ins on all three dies for progressive press compatibility
• Three-die set covers full reloading cycle for .40 S&W and 10mm Auto

Specifications

Caliber	.40 S&W / 10mm Auto
Number of Dies	3 (sizing, expander, seating)
Sizing Die Material	Titanium Carbide
Expander Plug Coating	Titanium Nitride (TiN)
Included Accessory	Bullet Seating Micrometer
Press Compatibility	Single-stage and progressive presses

Frequently Asked Questions

Will this die set work in my progressive press?

Yes. All three dies feature enhanced lead-ins designed for smooth operation in progressive reloading presses, though the set is equally at home in a single-stage press.

What's included in the box?

The set contains three dies: a titanium carbide sizing die, an expander die with TiN-coated expander plug, and a seating die with a bullet seating micrometer. That micrometer gives you dial-in control over seating depth for consistency across your entire batch.

What calibers does this set cover?

This premium die set is configured for both .40 S&W and 10mm Auto.

Can I use this set to reload cast bullets?

Yes. The expander plug includes a flare design at its base that opens the case mouth enough to seat cast bullets without shaving lead during the seating process.