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Case Gauge Ammo Checker .308 7-Hole
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Case Gauge Ammo Checker .308 7-Hole

Product #: 70165
Price: $40.00


In Stock
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Material: 6061 T6 Aluminum
Finish: Black Anodized     
Width: 1.25"
Height: 2.81"

EGW’s Chamber Checkers are machined from solid 6061 T6 aircraft grade aluminum. 

While some companies use boring bars to make chamber checkers, EGW uses the actual Clymer reamers that are used to chamber barrels.

Anodized matte black for durability.

Measures min case diameter.

Measures max overall length.

Warning: This product may be alloyed with trace amounts of lead and other elements which are known to the State of California to cause reproductive harm and cancer. To prevent exposure, do not alter the product by welding, grinding, etc. For more information, go to

Product Reviews

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Reviewed by topclass2017
08/24/2017 - 03:55:16 PM
.308 chamber checker
this is a great tool on the reloading bench. I also have one for .30-06, and just purchased a 6.5 Creedmoor. As I size brass I drop it into the checker. If it doesn't drop in flush, I'll run it through my sizing die a second time. If still a no-go I toss it. Doing this I have zero failures to feed in my bolt guns. Before following this procedure I'd have occasional rounds that wouldn't chamber, which is frustrating, bot for the time wasted in loading the round, time wasted in pulling it apart, and having one less round to fire that day.

These checkers are not inexpensive, but well worth the investment as a QC check step on the bench.