Frankford Arsenal Case Prep and Trim System

By Dr. Jim and Mary Clary

Frankford Arsenal Case Prep and Trim System
Illustration courtesy of Frankford Arsenal

Preparing cases for reloading is time consuming, labor intensive and tedious. However, if it isn't done properly, your reloads will not be accurate, the cases may hang up in the chamber and you might damage your gun. The essential steps in successful case preparation include (for non-target/competition loads) are:

  • Resizing the case
  • Trimming the case to length
  • Deburring the outside of the case mouth
  • Chamfering the inside of the case mouth
  • Cleaning/Uniforming the primer pocket

Resizing the case, either full length or neck sizing is easily accomplished with any good set of dies and press. However, case trimming is another matter. You can spend anywhere from $70 for the basic Forster original Case Trimmer to over $200 for a Lyman or RCBS electric trimmer. Deburring, chamfering and primer pocket tools run anywhere from $10 to $35, depending on brand, and that is only for the hand tools.

If you want to save some time you can invest in a power drill or mini-lathe to mount these tools, which makes the process go faster, but you still have to mount the tools separately for each step.

With all of the above said, your investment in case prep tools can range from $100 to over $400. This, of course, does not include the price of a good power drill or mini-lathe.

Our reasoning for providing a brief outline of the cost of case preparation is to illustrate that this new Frankford Arsenal device is a more affordable option. Even if you have all of the above mentioned tools, which we do, it makes the task of case preparation easier and less boring.

The machine comes with collets and bushings to trim cases from .17 Remington up to the .460 Weatherby. The deburr, chamfer and primer pocket tools screw into the front of the case for easy and continuous access. The specifications and features include:

  • Case Trim & Prep System includes: Deburr Tool, Chamfer Tool, 3 different sized Case Body Collets, 6 different sized Case Shoulder Bushings and 2 different sized Primer Pocket Cleaners
  • Patent Pending Case Holder Assembly allows for easy and repeatable trim-length adjustment for any length desired.
  • Patent Pending Universal Collet System works with shouldered cases from .17 Remington to .460 Weatherby.
  • Ultra-Hard, High Speed Steel Cutters stay sharp for thousands of rounds to make trimming quick and easy.
  • Unique Adjustable Collet and Bushing design indexes cases on the shoulder for speed and precision.
  • Adjustable stand and non-skid feet allow\'a0the unit\'a0to be operated in a variety of positions.
  • Outside Chamfer tool and Large and Small Primer Pocket Cleaning tools are included.
  • Makes Trimming and Chamfering Cases fast and easy with no need for shell holders.
  • Built-in storage box holds extra tools and keeps everything ready and organized.
  • VLD Chamfering tool makes loading easier and prevents damage to bullets.
  • 3 Output shafts accept all case trimming accessories with 8-32 threads.
  • Aluminum and Steel construction for extreme durability and long life.

Once the case holder is adjusted, simply insert brass into the case holder as a collet aligns the case squarely with the hi-speed cutter. As the case mouth contacts the cutter, it is trimmed until the case shoulder stops on an internal bushing. Remove the case, deburr the outside, chamfer the inside and clean out the primer pocket and you are done.

The only drawback that we could find was the slow constant speed of the motor. If you are used to using a high speed trimmers, drills or lathes, then the slower constant speed of this device could frustrate you. You will find yourself wishing for a variable speed control to use for the different tasks.

However, before you decide that the slower speed is not for you, think back. How many cases have you ruined by using high speed motors and over-trimmed, put in too much chamfer or beveled the outside of the case mouth with your deburring tool? The constant speed of the Frankford Arsenal allows for precise preparation. The goal in reloading is not to see how fast we can do the job, but how well we can do the job.

This one tool will replaces five separate reloading tools. It has a convenient storage compartment on top for all components that are not in use. The Frankford Arsenal Case Prep & Trim system has a 2017 MSRP of $199.99, but you can usually find it online for under $175.

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Copyright 2014, 2017 by Jim Clary and/or All rights reserved.