L.E. Wilson Case Gage 300 WSM
$33.41
The L.E. Wilson Case Gage for 300 WSM is an essential tool for precision reloaders, allowing you to check overall length and headspace to ensure accurate trimming and sizing. Designed specifically for fired cases, it measures minimum and maximum case lengths and headspace, helping you maintain optimal performance and safety. Proudly made in the USA, this gage is a reliable addition to your case prep arsenal.
1 in stock
The Wilson Case One piece gage will check overall length to indicate the need for trimming datum to head length to assure correct headspace and to prevent over sizing. Available for most popular rimless cases.
MEASURES MIN/MAX CASE LENGTH AND MIN/MAX HEADSPACE
Note: Does not measure body diameters. This gage is intended to be used with fired cases to determine a basis for full length sizing and trimming.
Made in the USA
| Weight | 0.370 lbs |
|---|---|
| Dimensions | 3.250 × 1.250 × 1.250 in |
| Manufacturer | L.E. Wilson |
| Finish | Unfinished |
| Weight | N/A |
| Material | Steel |
| Dimensions | N/A |
| Compatible With | .300 Winchester Short Magnum |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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