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Posted: 5/5/2015 7:25:58 PM EDT
| I ordered some Forster headspace gauges from brownells. One is laser engraved 5.56 NATO 1.4736 MAX Dthe other is laser engraved 223 REM 1.4646. The barrel is 5.56. I am a bit concerned that I was sent the wrong gauge being labeled 223 REM. With the bolt stripped neither gauge allows the bolt to completely engage, but when I put live ammo in the bolt engages fully. Any ideas? |
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Quoted:
I ordered some Forster headspace gauges from brownells. One is laser engraved 5.56 NATO 1.4736 MAX Dthe other is laser engraved 223 REM 1.4646. The barrel is 5.56. I am a bit concerned that I was sent the wrong gauge being labeled 223 REM. With the bolt stripped neither gauge allows the bolt to completely engage, but when I put live ammo in the bolt engages fully. Any ideas? You were sent the correct gauges. .223 and 5.56 headspace in the same way. The 1.4736 represents a worn chamber....you should not be able to close a stripped bolt on this gauge. If you can, the rifle is considered unsafe. The 1.4646 represents a new chamber....you should be able to close a stripped bolt on this gauge. If you can't, then the chamber is short and not to spec. Those are the two best gauges to have. |
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