RCBS 90369 MATCHMASTER PRECISION CASE TRIMMER

The RCBS MatchMaster Precision Case Trimmer is a motorized case-prep workstation built for handloaders who demand consistent, repeatable brass preparation. Developed in partnership with Henderson Precision, this trimmer handles the three critical steps of case finishing—trimming, chamfering, and deburring—in a single pass, with micrometer-fine control down to .001 inch. If you're loading ammunition for precision rifle work, competition, or any application where case length consistency matters, this machine eliminates the guesswork and variability of manual trimming.

The MatchMaster's 3-way carbide cutting head does the heavy lifting: trim cuts excess brass, the chamfer tool opens the case mouth, and the deburr blade cleans the interior edge—all in one smooth motion. A high-speed custom-built motor drives the operation with enough power to work efficiently through batches without bogging down. The micrometer adjustment locks your trim length precisely, so once you dial in your target, every case comes out identical. Built from premium materials—6061-T6 aluminum and 303/416 stainless steel—and manufactured in the USA, it's engineered to last through thousands of cases.

The trimmer accepts cartridges from .22 to .30 caliber and handles case lengths from 1.36 to 2.85 inches, covering the vast majority of rifle and handgun rounds. It mounts securely to an RCBS Accessory Base Plate or directly to your bench, and a brass catcher keeps your workspace tidy. The package ships with seven caliber-specific pilots (.22, .24, .25, .26, .27, .28, .30), a #1 collet for common magnums and tactical rounds (223 Rem, 308 Win, 6.5 Creedmoor, 300 Win Mag, and others), and all the brackets and hardware you need to get running right away.

Key Features

• 3-way carbide cutting head trims, chamfers, and deburrs in one pass
• Micrometer length adjustment for precision down to .001 inch
• High-speed custom motor for efficient, consistent operation
• Accepts .22 to .30 caliber cases; handles 1.36 to 2.85 inch lengths
• USA-manufactured from premium 6061-T6 aluminum and stainless steel
• Includes brass catcher for clean bench work
• Mounts to RCBS Accessory Base Plate or bench
• Seven caliber pilots plus #1 collet for common rifle and magnum rounds included

Specifications

Frequently Asked Questions

What calibers does the MatchMaster trim?

The trimmer handles any cartridge from .22 to .30 caliber with case lengths between 1.36 and 2.85 inches. That covers most rifle rounds and many handgun cases. The included pilots are .22, .24, .25, .26, .27, .28, and .30 caliber, and the #1 collet adapts to popular magnums and tactical rounds like 223 Rem, 308 Win, 6.5 Creedmoor, and 300 Win Mag.

Does the MatchMaster deburr and chamfer, or just trim?

It does all three in one pass. The 3-way carbide cutting head trims excess brass, chamfers the case mouth, and deburrs the interior edge simultaneously. This eliminates the need for separate tools and multiple handling steps, saving time and improving consistency.

What's included in the box?

You get the trimmer unit, high-speed motor, mounting bracket, case bin, carbide cutterhead, brass catcher, seven caliber-specific pilots (.22 through .30), a #1 collet for common rifle and magnum rounds, and all necessary hardware for mounting to an RCBS Accessory Base Plate or your bench.

How precise is the length adjustment?

The micrometer adjustment provides precision down to .001 inch, so once you dial in your target trim length, every case will come out consistent. This level of control is critical for precision handloading and competition ammunition.