The RCBS Expander/Decapping Assembly in .30 Caliber (brand part no. 9813) comes in a variety of sizes to accommodate the most popular cartridge case calibers, and this version is sized specifically for .30 caliber cases. It features an ultra-hard carbide expander button paired with an adjustable positioning sleeve, letting you dial in the exact expansion point for your brass. Carbide construction keeps the button working smoothly through repeated cycles without the wear that softer materials would show over time. As a direct-fit replacement or spare component, it’s an easy way to keep a .30 caliber sizing die running without buying a whole new die body.

Key Specifications

• Sized for .30 caliber cartridge cases.
• Features an ultra-hard carbide expander button.
• Includes an adjustable positioning sleeve.
• Ships at approximately 0.06 lb.

Frequently Asked Questions

What is the expander button made from? An ultra-hard carbide, built to hold up to repeated cycles without excess wear.

Is the expansion point adjustable? Yes, the positioning sleeve is adjustable to dial in the exact expansion point.

Buy the RCBS Expander/Decapping Assembly, .30 Caliber

Keep your .30 caliber sizing die running with a durable carbide assembly. Shop more RCBS tools in our gunsmithing tools & gunsmith supplies lineup and order from our Lubbock, Texas gun shop for fast, insured shipping.