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Precision handloading lives and dies on consistency, and the RCBS Case Master Gauging Tool is built to keep your brass honest. It reads case neck concentricity, uniformity, and wall thickness, along with case length and bullet run-out, all displayed on a .001 inch dial indicator. That kind of detail is exactly what separates match-grade ammo from rounds that just go bang, and this tool makes checking it quick instead of tedious.
The real value here is how much ground one tool covers. Spin a case in the adjustable V blocks and you can check neck wall thickness variation, see run-out on a seated bullet, and gauge overall case length without swapping to a different setup. The V blocks hold most any case length securely, so you can run everything from stubby pistol brass to long rifle cases on the same bench without a fuss.
One of the standout features is its ability to detect impending case head separation before those telltale lines ever appear on the outside of the case. That is a safety check you can't easily do with a caliper, and catching a tired case early keeps a dangerous failure from ever reaching your chamber. For anyone running brass through multiple firings, this alone earns the tool a permanent spot on the bench.
Built with an aluminum base and steel accessories, the Case Master is compact enough that it won't hog your bench space. It works faster than fumbling with a dial caliper for the same measurements, which turns a job most folks dread into something you'll actually keep up with. If you're sorting brass for a precision load or just want more uniform ammo across the board, this is the kind of tool that pays you back every session.
It checks case neck concentricity, neck wall thickness and uniformity, case length, and bullet run-out, all read on a .001 inch dial indicator. It also detects impending case head separation before any lines show on the outside of the case. In short, it covers most of the dimensional checks a precision handloader cares about in one setup.
Yes, the dial indicator is included and reads to .001 inch. You don't need to source a separate indicator to start using the tool. The adjustable V blocks and compact base are part of the package as well.
It will. The adjustable V blocks are designed to hold most any case length securely, so you can run short pistol cases and longer rifle cases on the same tool. That versatility makes it handy if you reload across several calibers.
A caliper can give you length, but it can't easily show you neck wall thickness variation, concentricity, or seated bullet run-out. The Case Master handles all of those quickly and also flags case head separation that a caliper would miss entirely. It turns what used to be a slow, tedious job into something you can keep up with every loading session.
| UPC | 2070924873101 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 87310 |
| Shipping Weight | 2.1375 |
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