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LEE 90142 CASE LENGTH GAUGE & SHELL HOLDER 300 WIN MAG
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SKU: 90142-734307901424
Overview
Built for handloaders working with .300 Win Mag brass, this case length gauge and shell holder provides a straightforward way to trim cases to length and square the case mouth. It is designed for use with the Cutter and Lock Stud or Zip Trim, making it a practical bench tool for routine case prep. The hardened steel gauge and threaded shell holder help secure the case during trimming. Trim length is specified at 2.600 to 2.620 inches, so it is suited to reloaders who want a simple, purpose-specific setup for this cartridge.
Why Hunters Choose the Lee Precision
Precise Case-length
Trimming for 300 Win Mag
Helps Square
Case mouth during trimming
Works Cutter
Cutter and Lock Stud or
Threaded Shell
Holder locks the case securely
Hardened Steel
Gauge adds durable construction
Key Features
- Precise case length gauge for 300 Win Mag trimming
- Helps trim cases to length and square the case mouth
- Used with the Cutter and Lock Stud or Zip Trim
- Trim-to-length range: 2.600 to 2.620 inches
- Hardened steel gauge for added durability
- Threaded shell holder locks the case down
Best Used For
- Reloaders trimming 300 Win Mag cases to the specified 2.600 to 2.620 inch range
- Hunters who want a simple, guided setup for case-length trimming
- Users pairing it with a Cutter and Lock Stud or Zip Trim
- Reloading bench setups needing a threaded shell holder that locks the case down
Specifications
| Caliber | 300 Win Mag |
|---|---|
| Compatibility | Cutter and Lock Stud or Zip Trim |
| Easy To Use | Yes |
| Material | Hardened steel |
| Model | 90142 |
| Precise | Yes |
| Product Type | Case Length Gauge & Shell Holder |
| Squares Case Mouth | Yes |
| Threaded Shell Holder | Yes |
| Trim Length Maximum | 2.620 inches |
| Trim Length Minimum | 2.600 inches |
Pros
- Precise case-length trimming for 300 Win Mag brass
- Helps square the case mouth during trimming
- Works with Cutter and Lock Stud or Zip Trim
- Threaded shell holder locks the case securely
- Hardened steel gauge adds durable construction
- Trim range specified at 2.600 to 2.620 inches
Considerations & Trade-offs
- Designed specifically for .300 Win Mag case trimming, so it is not a general-purpose gauge for other cartridges.
- Requires use with the Cutter and Lock Stud or Zip Trim, so it is not a standalone trimming solution.
- The trim range is fixed at 2.600 to 2.620 inches, which leaves little flexibility if you need a different case length target.
- This is a dedicated gauge and shell holder set, so it is best suited to reloaders who already have the matching Lee trimming setup.
Suggested Comparisons
- Case trimming tools
- Shell holders
- Reloading case gauges
- Reloading trimmers
Suggested Accessories
- Case trimmer
- Reloading press
- Reloading shell holder
- Deburring tool
Frequently Asked Questions
What is the Lee 90142 Case Length Gauge & Shell Holder for 300 Win Mag used for?
It is used to trim 300 Win Mag cases to length and square the case mouth.
What trimming range is listed for this gauge?
The listed trim-to-length range is 2.600 to 2.620 inches.
What tools does this gauge work with?
It is used with the Cutter and Lock Stud or the Zip Trim.
What features are specifically listed for this product?
The listed features are a hardened steel gauge and a threaded shell holder that locks the case down.
Does the product description include any other case-loading details or performance claims?
No. The provided data only describes its trimming and case-holding function, along with the listed trim range and features.