Ask anyone who has spent many years reloading used cartridges and they’ll confirm to you that a good case trimmer is probably the most important tool in their career. Likewise, if you’re just getting started in the world of reloading, chances are that you’ll not take long before you realize how important these handy tools are. What you need to keep in mind is that every time a cartridge is fired, the brass tends to expand slightly.

Eventually, this gradual expansion takes its toll on the cartridges until they’d no longer fit within the chamber. That’s why an investment in the best power case trimmer matters a lot. Using this gadget improves your accuracy and cuts down on wastage – eventually, this translates into improved accuracy and simplifies the chambering and extraction processes.

# Picture

Product Name


Our Rating



Lyman Power Adapter Trimmers

4.9 x 1.9 x 1.7 inches


Frankford Arsenal Platinum Series Case Prep Center

7 x 7 x 5 inches


Hornady Lock-N-Load Case Prep Center 050012

20 x 13.2 x 9.4 inches


RCBS Accessory Power Assembly 120-Volt

13.5 x 8 x 6 inches


Trim Pro-2 Power Kit with Spring Loaded Shell Holder by RCBS

20.1 x 6.2 x 5.2 inches


050160 Hornady Lock-N-Load Case Prep Trio

7.9 x 4.5 x 4 inches


Hornady 095150 Lock-N-Load Precision Reloaders Accessory Kit

12 x 8 x 3 inches

By ensuring you’re consistently trimming your cases, you effectively guarantee that your rounds will remain of exactly the same size. This further reduces the risk of malfunction effectively ensuring that your semi-automatic rifle lasts long. Let’s take a closer look at some of the most sought-after the best power case trimmers – and why they remain incredibly popular.

7 Best Power Case Trimmer Reviews

1. Lyman Power Adapter Trimmers

​This Lyman universal case trimmer has ranked as the leading and best-selling power case trimmer, this innovatively built machine trims brass in a matter of seconds. It comes with an economical power trimming for re-loaders. And with its help you can easily turn the original lyman universal case trimmer into power trimming. All you need to do is adjust the case holder and insert brass into it as the collet system aligns the case with the cutter. Besides, it can cover 250 cases per hour.

The cutting process of every case trim and prep system takes place as the case mouth contacts the cutter head and stops immediately the shoulder touches the internal bushing. As you can see, the Lyman Power Adapter trimmer is easy to use and highly accurate. It’s also quite heavy-duty and convenient to store.


  • Highly effective for shaft and drill.
  • Handy shoulder cases for added precision and speed.
  • Does an incredible job of trimming and leaves no rough edges.
  • Made from aluminum and steel for added durability. 
  • Well thought-out cutters which are capable of staying sharp for long.
  • Built-in storage box which makes it easier to keep things organized.


  • A bit boring to operate especially when with lengthy trimming sessions.
  • Lacks instructions on how to install the cutting head.

Setting Up The Frankford Arsenal Platinum Series Case Trim and Prep Center System

2. Frankford Arsenal Platinum Series Case Prep Center

Case prepping is a tedious process with so many brass preparation procedures to be done. Frankford arsenal platinum series case prep center has revolutionized case prepping. It's designed with a high performing motor and has four power tools station which run up to 4 heads at one time. It comes with a chamfer tool, outside debur tool, small and large primer pocket scraper, and has cutter. The trimmer is sharp enough to go for a thousand rounds without going dull. For sturdy construction, the manufacturer had used hard aluminum and has provided storage slots at each side of the case prep.

It'll save you from the hassle of doing case prepping manually. With the help of this center, you can confidently work without worrying about any hand blisters or hand aches. With its 200 rpm output you can do your job quickly and efficiently. Plus, it's just 4.8 pounds so it'll be easier for you to carry and manage it.


  • Fast reloading because of five different functions being performed at the same time.
  • Quiet motor.
  • Comes with all important case prepping tools.
  • Easy clean-up after use.
  • Highest quality material is used in its construction.


  • Some people complained with time it starts to heat up with working and slows down.

3. Hornady Lock-N-Load 050012 Case Prep Center, 110 Volt

Simplify your reloading with the Hornady Lock-N-Load center. Designed to take care of all your case prepping needs, it integrates case prepping tools with case trimming because it has a built-in power case trimmer. It is designed to do all brass preparation functions. The center is manufactured from metal and therefore it is heavy and durable.

Using this tool will save you time in reloading because you can cut a lot of brass at the same time. What’s more, it will save you from manual reloading which is cumbersome and leaves your hands fatigued and blistered.

The package includes five neck brushes, deburr/chamfer tools, a power trimmer and a primer pocket Cleaner. You need to buy other case prepping tools separately including the flash hole debur, a primer pocket uniformer and pocket reamers.


  • Two in one functions, case prepping and trimming.
  • Easy to operate.
  • Heavy and does not slide on the workbench.
  • Durable.
  • Removable plastic trays making the process of collecting shavings easier.
  • Designed to keep shavings in the catch trays and not in the cases.


  • You have to purchase some accessories separately including the primer pocket reamers, flash hole debur and a primer pocket uniformer.
  • Not qualified for international shipping.

4. RCBS 90375 Trim Mate Case Prep Center

Trim Mate Case center removes complexities in the process of reloading. The center is designed to do hunting gun reloading case trimming tools. For starters, it is designed to do both case prepping and trimming. The center does all brass preparation tasks including chamfering, deburring and other functions. This helps you do case prepping processes fast, saving you time and at the same time sparing your hands from aches and bruises.

In addition, the center is well built and made from high-quality materials and operated by five gear rotating heads. The center comes with various reloading tools including case neck brushes (small and medium), primer pocket brushes (large and small), deburring heads, chamfering heads, outside deburring tools, dry neck lube packet.

The station has two fixed positions for placing case neck brushes and other tools and an area for putting case neck lube.


  • With five stations, it is fast, saving you a lot of time in prepping.
  • Affordable.
  • Two-year limited warranty.


  • It is a bit noisy.
  • Not eligible for international shipping.
  • Other tools have to be purchased separately.

5. RCBS Trim Pro-2 Power Kit with Spring Loaded Shell Holder

The process of reloading needs to be easy and should provide accurate case trim length. Make your trimming process efficient with the RCBS Pro-2 Trim Power Kit. This, one of the best case trimmers, removes the headache out of preparing hunting gear. It works with precision and speed helping you reuse your ammunition conveniently and produces accurate case length, with no rough edges.

Most importantly, the trimmer is constructed from high-quality materials. The electric case trimmer is also designed with a spring-loaded shell holder which locks the case and cutter well. We like the fact that the trimmer works with standard pilots. Installing it is easy and fast, you will just attach it to a workbench and you are good to go. The power case trimmer works at different calibers , i.e., with .22 and .45 brass ammunition.


  • It is designed with shell holders.
  • It's an electric case trimmer and it works faster than manual case trimmers.
  • It has multiple shell holders.


  • The electric case trimmer is powered by electricity and cannot be used on a hunting trip without electrical power, therefore, you will be required to prepare your ammunition in advance.
  • It is noisy.

6. Hornady 050160 Lock-N-Load Case Prep Trio

Hornady Lock-N-Load 050160 has made case prepping fast and easy. Made in the USA, Hornady Lock-N-Load 050160 has simplified the process of brass preparation with its features. For starters, it is a very powerful machine that has three spindle heads. The case prep has an efficient motor that drives the three spindle heads. Because of its trio-tool feature, it provides convenient reloading because you don’t have to keep changing tools. You can mount three essential tools at once and start working. The case prep, therefore, requires little effort to operate it thereby saving your hands from fatigue experienced using a manual process.

In addition, Hornady Lock-N-Load 050160 is designed small and therefore portable. Another advantage of this case prep is that it is made from aluminum, making it is durable. The package comes with inside and outside chamfer tools and deburring tools and provides space for storing other accessories.


  • Durable
  • It has a capacity for three tools because it has three spindle heads.
  • Easy to clean.
  • An easy to use station and quiet when operating.
  • It is competitively priced.


  • It comes with only two accessories, the chamfering and deburring tools, you have to buy other accessories separately.
  • Not eligible for international shipping. 

7. Hornady 095150 Lock-N-Load Precision Reloaders Accessory Kit

Hornady Lock-N-Load Precision Re-loaders Accessory Kit is a reloading multi-function power tool. It is ideal for large volume brass preparation processes. It's constructions is done with quality materials, making it durable. The tool helps you to check for if all the loaded bullets are out, if the head spacing is done correctly, and if your final production looks similar from all the sides or not. Besides, it's lock-n-load system is quite easy to use and helps you get the hold of dies in sturdy and right alignment.

For your best knowledge, your package will arrive with concentricity tool, cam lock trimmer and power adapter, steel caliper, and other lock-n-load system. Apart from this, when you have to change the calibers, all you need to do is twist the die anti-clock wise, remove it and insert the new one.


  • It has multipurpose functions, and it's lock-n-load system is quite quick and easy to use.
  • Ergonomic handle and therefore easy to grip.
  • Easy to operate.
  • Affordable.


  • Not qualified for international shipping

Advantages of Using Power Case Trimmer

By investing in a good, budget-friendly power case trimmer, you stand the opportunity to optimize your rifle’s life. But that’s not all. Indeed, as our experts found out, there are quite a few merits to investing in these handy devices.

* Improved Accuracy

While it’s important to trim cases every now and then, doing so regularly improves on accuracy and minimizes on wear and tear. You can also try trimming cases per hour for the improvement. As a matter of fact, the best way to become effective at using ammo is by ensuring that your ammo is consistent i.e. every round will be exactly the same. As you know, even a fraction of MOA can translate into a serious loss of accuracy especially when long distances are involved.

* Going Easy on Your Brass

By ensuring that all your ammo are exactly the same, the chambering and extraction process is simplified. Use rounds that are a tad longer and your precious rifle will run the risk of malfunctioning. So, whether you’ll be out there hunting coyotes or facing the task of shooting a 3-gun match, trimming your brass is a great way to minimize jams.

* Retaining High Quality of Finished Product

Last but not least, by frequently putting your power case trimmer to use, you end up with a better –finished product. This goes a long way in improving your accuracy and enhancing your consistency. Without mincing our words, we can confirm that for anyone who reloads cases into match grade ammunition, there’s no shortcut to sustaining great quality. A quality best case trimmer is a must-have.


The Buying Guide

Chances are that by this time you’ve already settled on the best case trimmer. Just to be sure that you’re about to make the right decision, it’d be nice to take a quick look at the following quick buying points.

* Cutting Material:

A carbide cutter is best for high volume reloaders but if you aren’t one, consider settling for a high-speed steel cutter for routine trimming.

* Manuals vs Electrical:

Manual trimmers are best for small cutting jobs, they also tend to be quieter but if looking for high volume cutters, electrical case trimmers would be a perfect match. We haven't covered the automatic case trimmer at the moment.

* Build Quality:

Prepare to dig deeper into your pockets for high-quality trimmers but if you’re looking for a cheap way to get the job done, insist on getting a no-frills, budget-friendly reloading equipment.

Which is Best for You?

Even though all the best case trimmers reviewed above are above board, we think that the best overall position belongs to Lyman Xpress 6702203 Case Prep 115V. This product combines a fantastic mix of features and has established a solid track-record on the markets as well.

Final Words

Quality, ease-of-use, the combination of features and cost are probably some of the mind-boggling aspects you’ll encounter when shopping for the best case trimmer. And given the fact that no two or three power case trimmers are equal, it’s important to always go for a unit that’s touted as a winner through expert reviews. This simple strategy can help you save tens of dollars whilst benefiting from high quality and hassle-free trimming sessions.