The L.E. Wilson 33 Nosler case gage is a precision measuring tool built for reloaders who take headspace seriously. Whether you're setting up your full-length resizing die, checking fired brass, or verifying case length before trimming, this one-piece gage gives you the accuracy you need to avoid the common mistake of oversizing your brass—which can lead to premature case failure and safety issues downrange. For 33 Nosler handloaders, proper headspace control is the foundation of consistent, reliable ammunition.
Using the L.E. Wilson case gage with a caliper is fast and repeatable. You'll measure overall length to spot cases that need trimming, and more importantly, datum-to-head length to confirm your headspace is correct before you seat bullets. This takes the guesswork out of die setup and keeps your brass shooting longer. The gage's knurled middle section gives you good grip control, and its compact design means it won't take up bench real estate.
If you're running a progressive or single-stage press and loading for 33 Nosler, this tool belongs in your kit. It's a one-time investment that pays dividends in brass life, accuracy, and peace of mind.
Key Features
- One-piece design for checking overall length and datum-to-head measurements
- Identifies brass that needs trimming
- Ensures correct headspace to prevent over-sizing and premature case wear
- Knurled middle section for secure grip
- Works with standard dial or digital calipers
Specifications
| Product | L.E. Wilson 33 Nosler Case Gage |
| Overall Length | 2.494" |
| Large End ID | .473" |
| Small End ID | .347" |
| Outside Diameter | .991" |
| Finish | Silver with knurled middle section |
| Included | Gage and instructions |
Frequently Asked Questions
What dies does this case gage work with?
The L.E. Wilson 33 Nosler case gage is designed to work with 7/8"-14 press type full-length resizing dies, which is the standard thread for most single-stage and progressive presses.
How do I use a case gage to set up my resizing die?
Insert a fired case into the gage, then use a caliper to measure the datum-to-head length and compare it to your target. Adjust your die until your resized brass matches the correct headspace specification. This prevents over-sizing and extends case life.
Can I use this gage for belted magnum cartridges?
This is a standard-style gage. L.E. Wilson also makes adjustable-style gages specifically for belted magnums, where the belt itself provides headspace support and minimizing shoulder sizing is critical to case longevity.
What tools do I need to use this gage?
You'll need a dial caliper or digital caliper to measure the case dimensions against the gage. The gage and instructions are included; calipers are sold separately.
