$52.80
3 in stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
L.E. Wilson has been building precision reloading tools for generations, and this 300 AAC Blackout case gage carries that reputation right to your loading bench. It's a one-piece, machined gage that lets you quickly check your brass for proper headspace and overall case length, two of the most important measurements when you're running a cartridge like 300 Blackout that's formed from cut-down 5.56 brass. The whole idea traces back to 1935, when Wilson's founder first designed a case gage to help a fellow shooter solve a case-separation problem. That same concept is still doing the job today.
This is the brass model, an upgrade from Wilson's standard steel line. The gages are machined from U.S.-sourced brass bar stock, which brings good corrosion resistance and a genuinely nice surface finish to the table. If your bench runs humid or you just like tools that hold up over the long haul, the brass construction is a real perk over plain steel.
The most useful thing this gage does is help you set up your full-length sizing die without overworking the brass. Drop a fired case in and note where it sits, resize it on your current die setting, then drop it back in to see exactly how far you've pushed the shoulder back. Pair it with Wilson's Case Gage Depth Micrometer when you want precise numbers. From there you adjust your die for the shoulder setback you're after, which keeps you from oversizing and shortening case life.
After sizing, brass tends to stretch, and this gage flags the cases that need trimming by letting you read minimum and maximum overall length at a glance. One thing worth knowing: it checks length and datum-to-head headspace, not body diameter, and it's meant to be used with fired cases. For anyone loading 300 Blackout in volume, it's the kind of simple, repeatable tool that earns a permanent spot on the bench.
It checks two things: overall case length so you know when a case needs trimming, and datum-to-head length so you can confirm proper headspace and avoid oversizing. It does not measure case body diameter. It's designed to be used with fired cases as your baseline for setting up sizing and trimming.
The CGB-3ACC is machined from U.S.-sourced brass bar stock instead of steel. Brass offers good corrosion resistance and a clean surface finish, making it a nice upgrade over the standard steel line. Functionally it checks the same headspace and case length measurements.
Yes, that's one of its main jobs. Measure a fired case in the gage, resize it on your current die setting, then drop it back in to see how far you've pushed the shoulder back. Adjust your die from there to get the shoulder setback you want, which helps prevent overworking and prematurely wearing out your brass.
No, the gage works on its own for quick visual and feel checks of headspace and length. The Wilson Case Gage Depth Micrometer is an optional add-on for reloaders who want exact numeric measurements of shoulder setback. Many people get great results with just the gage and a set of calipers.
| UPC | 815145028617 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | CGB-3ACC |
You must be logged in to post a review.
Reviews
There are no reviews yet.