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L.E. Wilson
L.E. Wilson
The L.E. Wilson 303 British case gage is an essential precision tool for reloaders who want to keep their brass in top condition and their ammo reliable. This single-piece gage lets you quickly check both overall case length and headspace (datum to head length) without guesswork—critical steps before you ever touch a resizing die. Whether you're working with virgin brass or firing rounds you've already loaded, this tool helps you catch oversizing before it becomes a problem that shortens case life and wastes your investment in quality brass.
Oversizing during resizing is one of the most common mistakes in handloading, and it's often invisible until cases start splitting or losing their grip on the bullet. The L.E. Wilson gage gives you a straightforward way to verify headspace and identify cases that need trimming—and more importantly, to dial in your full-length resizing dies so they do their job without doing too much. If you're running the .303 British through a press-type resizing die (the standard setup), this gage belongs on your reloading bench.
Built from solid metal with knurled grip in the middle for easy handling, the gage is straightforward to use: run a fired case into the gage and measure the result with a caliper to verify you're in spec. It comes with clear instructions to walk you through the process. If you reload .303 British with any regularity, this is the kind of simple, inexpensive tool that pays for itself in saved brass and peace of mind.
| Caliber | .303 British |
| Overall Length (OAL) | 2.494" |
| Large End ID | .473" |
| Small End ID | .347" |
| Outer Diameter (OD) | .991" |
| Finish | Silver with knurled middle |
| Includes | Gage and instructions |
Insert a fired case into the gage and use a caliper to measure the datum-to-head length. This measurement tells you if your brass is within spec. Once you know your target headspace, adjust your full-length resizing die until fired cases, when run through it and re-checked on the gage, fall within acceptable range. The included instructions walk you through the process step by step.
Yes, this L.E. Wilson gage is specifically designed for .303 British. It's built to the dimensions and headspace requirements of that cartridge.
The package includes the case gage itself and instruction sheet. You'll need your own caliper to take measurements.
Yes. The gage is useful for checking fired cases to verify headspace after resizing, and it can also be used to evaluate new brass or brass from other sources before you begin reloading.
The L.E. Wilson 303 British case gage is an essential precision tool for reloaders who want to keep their brass in top condition and their ammo reliable. This single-piece gage lets you quickly check both overall case length and headspace (datum to head length) without guesswork—critical steps before you ever touch a resizing die. Whether you're working with virgin brass or firing rounds you've already loaded, this tool helps you catch oversizing before it becomes a problem that shortens case life and wastes your investment in quality brass.
Oversizing during resizing is one of the most common mistakes in handloading, and it's often invisible until cases start splitting or losing their grip on the bullet. The L.E. Wilson gage gives you a straightforward way to verify headspace and identify cases that need trimming—and more importantly, to dial in your full-length resizing dies so they do their job without doing too much. If you're running the .303 British through a press-type resizing die (the standard setup), this gage belongs on your reloading bench.
Built from solid metal with knurled grip in the middle for easy handling, the gage is straightforward to use: run a fired case into the gage and measure the result with a caliper to verify you're in spec. It comes with clear instructions to walk you through the process. If you reload .303 British with any regularity, this is the kind of simple, inexpensive tool that pays for itself in saved brass and peace of mind.
| Caliber | .303 British |
| Overall Length (OAL) | 2.494" |
| Large End ID | .473" |
| Small End ID | .347" |
| Outer Diameter (OD) | .991" |
| Finish | Silver with knurled middle |
| Includes | Gage and instructions |
Insert a fired case into the gage and use a caliper to measure the datum-to-head length. This measurement tells you if your brass is within spec. Once you know your target headspace, adjust your full-length resizing die until fired cases, when run through it and re-checked on the gage, fall within acceptable range. The included instructions walk you through the process step by step.
Yes, this L.E. Wilson gage is specifically designed for .303 British. It's built to the dimensions and headspace requirements of that cartridge.
The package includes the case gage itself and instruction sheet. You'll need your own caliper to take measurements.
Yes. The gage is useful for checking fired cases to verify headspace after resizing, and it can also be used to evaluate new brass or brass from other sources before you begin reloading.
