Posted: 6/4/2009 4:40:42 PM EDT
| Are colt bolts test fired? I purchased a complete group from SAW and it has no marks what so ever. |
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Quoted:
If by "fired" you mean proof tested, all of the references say that all Colt bolts are proof tested, but that some are not marked with MP. Supposedly, all Colt-made bolts are marked with at least a "C", however. Yes, I'm referring to the proof testing and to be honest I'm ignorant to the actual process. I guess I was expecting markings similar to those that were on the bolt face that came with my 6920. Here are some pictures: 
And since this is the Colt forum, here are the Ponies: 
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| I believe the "proof test" is a single shot using a cartridge that generates 20% overpressure. Don't know if this is done before the parkerizing or not. A proof tested bolt sold as a spare, wouldn't have much wear and tear on it, even if the test firing were done after parkerizing. The complete rifles, in addition to having a proof tested bolt, are test fired using normal ammunition for function and zeroing. Don't know how many rounds are involved in the FT. |