Wilson Stainless Case Trimmer Kit with Micro-Adjust Stop .50 Cal wtih 50 BMG Case Holder
The L.E. Wilson Stainless Case Trimmer Kit with Micro-Adjust Stop brings precision and durability to your reloading bench, especially if you're working with large-format rifle cases like .50 BMG. This case trimming system combines a stainless trimmer head with a fine-adjustment micrometer stop, letting you dial in exact case length every single time without guesswork. Whether you're prepping brass for long-range shooting, bench rest, or specialty caliber work, consistent case length is non-negotiable for accuracy and safety—and this kit makes it simple.
Built in the USA from American steel and finished with a black oxide coating, the trimmer is engineered for durability and dependable performance across hundreds of reloading sessions. The design accommodates longer magnum and oversized cases thanks to an extended base, and the micro-adjust stop mechanism gives you the precision control that separates careful reloaders from the rest. All standard case holders are compatible, so you're not locked into a single setup.
This is the .50 caliber kit, outfitted specifically with a 50 BMG case holder to get you started. The trimmer head itself will cut cases ranging from 6mm up to .50 cal, making this a versatile tool if your reloading stable grows. The included stand with mounting screw keeps everything stable and repeatable, and the case holder clamp secures your brass firmly while you work.
Key Features
- Stainless trimmer head with black oxide finish for corrosion resistance and long service life
- Micrometer stop adjustment for precise, repeatable case length to the thousandth of an inch
- Extended base design accommodates longer magnum and oversized cases
- Cuts cases from 6mm through .50 caliber
- All standard case holders are compatible
- Includes 50 BMG case holder, trimmer stand with mounting screw, and case holder clamp
- Made in the USA with American steel
Specifications
| Trimmer Material | Stainless steel with black oxide coating |
| Case Capacity | 6mm through .50 caliber |
| Included Case Holder | 50 BMG |
| Stop Adjustment | Micrometer with 1/2-20 thread and 5/8" head |
| Country of Origin | USA |
| What's Included | Trimmer, 50 BMG case holder, stand with mounting screw, case holder clamp, micrometer stop |
Frequently Asked Questions
Can I use this trimmer kit with cases other than .50 BMG?
Yes. The trimmer head will cut any case from 6mm through .50 caliber. The kit comes with a 50 BMG holder, but all standard case holders are compatible, so you can swap holders to prep brass in other calibers.
What's included in the kit?
The kit includes the stainless trimmer, a 50 BMG case holder, the trimmer stand with mounting screw, a case holder clamp, and the micrometer stop adjustment assembly.
How does the micrometer stop work?
The micrometer stop uses a 1/2-20 thread with a 5/8" head, allowing you to set and repeat precise case lengths with fine adjustment control. Once dialed in, you can trim multiple cases to identical length without re-measuring.
Is this trimmer built to last?
Yes. It's made in the USA from American steel and finished with black oxide coating for durability and corrosion resistance. The extended base design also distributes stress evenly and accommodates longer cases without compromise.

