Okay... hopefully this is a really basic question: Do OEM AR-15 barrels that have a black nitrided finish typically have that finish on the *inside* as well? Specifically, in the chamber?
Black chamber?
- Thread starter memilanuk
- Start date
Yes. Nitride is not a finish, it's a surface hardening process that requires complete immersion of the product and just happens to turn the metal black. It's not a plating, coating or paint, it's just blackened steel.
No, I will never tolerate a bark metal chamber. There will be nothing between my cartridge and the reamed chamber. Any chamber treatment after reaming other than cleaning can alter the cartridge grip. I have sent barrels back that have treatments.
You clearly aren't paying attention.
No, this isn't about opinions. There's nothing between your cartridge and chamber in a nitrided barrel.
Any treatment changes the surface finish. My machining instructors made that very clear. If you want to do it fine, do it before you do your final cuts. You obviously have not paid attention! Again if you are Ok with this, fine, I am not.
No clue actually, they are saying the black chambers were caused by nitriding the barrel. My position is that I do not consider having that done after machining the chamber is acceptable and will not accept a barrel that does not have a clean chamber cut.
You should read about salt bath nitriding, you clearly dont understand what it is. If you're concerned about the cartridge case gripping the chamber, rest easy, it isn't that big of a deal. Salt bath Nitriding actually creates a slightly rougher surface, so if anything it should alleviate your concerns.
BTW... typically the nitrating process will leave a fuzzy surface... clean the fuzziness out of the bore and chamber.
Agreed, I am done. Opinion not changed, but neither is yours, so all is wel.
Edit; just read it again. This is about factory AR barrels. Yeah no big deal with them. Made to shoot hard as a design criteria. Never mind.
Edit; just read it again. This is about factory AR barrels. Yeah no big deal with them. Made to shoot hard as a design criteria. Never mind.
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I really don't think he understands what it is. I don't even know what you would plug a chamber with that could withstand the heat and completely seal the chamber when being treated with nitride but im not a smith either.
Why would you go to that extreme to get the benefits and protection of the rifling but not want those very same benefits for the chamber?
Why would you go to that extreme to get the benefits and protection of the rifling but not want those very same benefits for the chamber?
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I know what it is, I have done it to metal many times. In my sad mind I was thinking precision barrels. Again for a hard working AR barrel I think it is fine.
Okay, you have your reasons then. I just started using them on precision barrels and so far so good. I'm slow to change and I've always rolled with if it ain't broke but some times I do venture out of my comfort zone and discover something new is actually better then what I've been using or doing. Sometimes....
