The Lee 45 ACP Breech Lock Carbide Micrometer 4-Die Set (Lee part no. 91940) uses color-coded quick-change bushings and includes a Carbide Full-Length Sizing Die, a Powder-Through Expanding Die, a Micrometer Bullet Seating Die, and a Carbide Factory Crimp Die, along with a Universal Shell Holder, powder dipper, and instructions with load data. It’s a good match for handloaders reloading mixed range 45 ACP brass on a press with the Breech Lock Quick Change feature.

Key Specifications

• Uses color-coded quick-change bushings for fast die identification.
• Includes a Carbide Full-Length Sizing Die, no case lube needed.
• Includes a Powder-Through Expanding Die.
• Includes a Micrometer Bullet Seating Die for repeatable seating depth.
• Includes a Carbide Factory Crimp Die.
• Comes with a Universal Shell Holder, powder dipper, and load data instructions.

Frequently Asked Questions

Do I need a Breech Lock press to use this set? The quick-change bushings are designed for a Breech Lock Quick Change press, though the dies themselves use standard threading and can be used in any press.

Is this set good for mixed range brass? Yes, it’s a good match for handloaders reloading mixed range 45 ACP brass.

Buy the Lee 45 ACP Breech Lock Carbide Micrometer 4-Die Set

Get carbide sizing and micrometer-precise seating for 45 ACP in one complete four-die set. Order it from our Lubbock, Texas gun shop, where our gunsmithing tools selection stocks Lee Breech Lock dies for popular pistol calibers, with fast shipping to your door.