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Chamber Checkers help you avoid jams, misfires, feeding problems, and other malfunctions caused by out-of-spec ammo. Use with factory loaded ammunition as well as reloaded ammo prior to shooting to verify  your ammunition is within SPEC. These 7-Hole checkers are machined from solid 6061 T6 aircraft grade aluminum and uses actual Clymer reamers to ensure the ammo matches your chamber. Measures minimum case diameter as well as maximum overall length. Anodized Matte Black.


1911, Issue:10, Page:054
Big Book Catalog, Issue:72, Page:369
Big Book Catalog, Issue:72, Page:431

SPEC. These 7-Hole checkers are machined from solid 6061 T6 aircraft grade aluminum and uses actual Clymer reamers to ensure the ammo matches your chamber. Measures minimum case diameter as well as maximum overall length. Anodized Matte Black.

EGW - 7-HOLE CHAMBER CHECKERS

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Cartridge: 223 Remington

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Cartridge: 5.56 mm NATO

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Cartridge: 380 Auto (ACP)

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Cartridge: 30-06 Springfield

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Cartridge: 300 AAC Blackout

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Cartridge: 10 mm Auto

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Cartridge: 40 S&W

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Cartridge: 45 Auto (ACP)

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Cartridge: 9 mm Luger

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Cartridge: 44 Magnum