Redding Adjustable Taper Crimp Die 45 Acp/Gap

If you're running a progressive press and loading .45 ACP or .45 GAP, the Redding Adjustable Taper Crimp Die saves you the frustration of pulling the die every time you need to tweak your crimp. A knurled micrometer-style adjustment knob on top lets you dial in crimp depth without breaking down your setup—a real time-saver for high-volume reloading. The hardened steel internal sleeve handles the actual crimp work, and thanks to Redding's smart double-ended design, you flip it to load the second cartridge in the pair without any die swaps.

Taper crimp dies are essential for pistol rounds that feed semi-auto firearms. The proper crimp holds the bullet securely, ensures consistent feeding, and helps you maintain case neck tension across your entire batch. With the micrometer adjustment offering approximately ±.100" of travel after initial setup, you get the fine control you need to dial in the exact crimp your ammo demands—no guessing, no backing off and starting over.

Redding's adjustable taper crimpers are built for reloaders who want precision without the constant back-and-forth. Whether you're loading for competition, duty carry, or high-round-count practice, this die lets you work efficiently and dial in the consistency that keeps your ammunition feeding reliably.

Key Features

• Top-adjustable design—crimp depth tuning without removing die from press
• Micrometer-style knurled barrel for precise, repeatable adjustments (±.100" range after setup)
• Hardened steel internal sleeve for durability and consistent crimp performance
• Double-ended sleeve—flip to crimp .45 ACP or .45 GAP in the same die
• Ideal for progressive and single-stage presses

Specifications

Frequently Asked Questions

Will this die work with both .45 ACP and .45 GAP?

Yes. The die includes a double-ended hardened steel sleeve—one taper is optimized for .45 ACP, the other for .45 GAP. Flip the sleeve to switch between the two cartridges without changing dies.

Do I have to remove the die from my press to adjust the crimp?

No. The top-adjusting design with a micrometer knob lets you adjust crimp depth while the die stays mounted in your press, saving time and eliminating the need to reset everything after each adjustment.

What is the total range of crimp adjustment?

The micrometer barrel provides approximately ±.100" of adjustment travel after your initial setup is complete.

Is this die suitable for high-volume reloading?

Yes. The top-adjusting feature makes it especially practical for progressive and high-volume reloaders who would otherwise waste time removing and reinstalling the die to fine-tune crimp consistency.