Lee Case Length Gauge & Shell Holder for .300 Winchester Magnum

Lee Case Length Gauge & Shell Holder .300 Winchester Magnum
The Lee Case Length Gauge & Shell Holder .300 Winchester Magnum is a calibre-specific combination designed for trimming .300 Winchester Magnum cartridge cases to the correct length. The case length gauge determines the trimming length and works with the Lee case trimming system to produce consistent case lengths.
Accurate Cartridge Case Trimming
During reloading, cartridge cases can increase in length as a result of firing and resizing. If a cartridge case exceeds its maximum permitted length, it must be trimmed before further use.
The Lee Case Length Gauge is used together with the Lee Cutter & Lock Stud. The gauge attaches to the cutter and uses its fixed length to limit how much material is removed from the case mouth. The matching shell holder keeps the cartridge case positioned during trimming.
Specifically Designed for .300 Winchester Magnum
This version is matched to the case length of the .300 Winchester Magnum cartridge, also known as .300 Win Mag. The gauge limits the cutting process once the intended length has been reached, allowing multiple cartridge cases to be trimmed to a consistent length.
The fixed-length design eliminates the need to adjust the trimming length separately for each cartridge case. This version is intended for .300 Winchester Magnum, not .300 Winchester Short Magnum (.300 WSM).
Features and Specifications
- Brand: Lee Precision
- Product: Case Length Gauge & Shell Holder
- Manufacturer part number: 90142
- Calibre: .300 Winchester Magnum (.300 Win Mag)
- Material: Steel
- Type: Case length gauge with shell holder
- Application: Trimming cartridge cases to the correct length
- Compatibility: Lee Cutter & Lock Stud and suitable Lee case trimming systems
- Contents: Calibre-specific case length gauge and matching shell holder
Part of the Lee Case Trimming System
The Lee Case Length Gauge & Shell Holder .300 Winchester Magnum is a practical component of the Lee case trimming system. Its fixed-length design and matching shell holder allow cartridge cases to be trimmed consistently as part of the case preparation process.







