Is nitrocarburizing the wave of the future?

[ABNAK]

I have, however, read conflicting reports about removing the barrel extension prior to the treatment.

I've heard the same thing. Also, if it's been fired much (and I don't know the "cutoff") it won't take to the bore; an unfired barrel is optimal from what I've read.

[ABNAK]

I thought about getting a melonite barrel once because from what I researched the coeficient of friction of melonite is lower than chrome. The result was that the barrel stayed cooler.

I wonder how nitro-carbinate compares in that category.

I would love to see data on barrel temps vs. different coatings to see if that is BS or not. I was not able to find anything real concrete so I did not buy the barrel.

I think Meloniting is a form of nitrocarburizing, same with Tennifer. Both are brand names like Kleenex is to tissue.

[polymorpheous]

I've heard the same thing. Also, if it's been fired much (and I don't know the "cutoff") it won't take to the bore; an unfired barrel is optimal from what I've read.

Robb Jensen was talking about putting a couple hundred rounds through one.
Cleaning all the fouling out.
And sending it out for the treatment.

Something about peak accuracy after that many rounds.

[polymorpheous]

I think Meloniting is a form of nitrocarburizing, same with Tennifer. Both are brand names like Kleenex is to tissue.

Yup.

[ABNAK]

If it scores a Mil contract then I would think so.

The military currently uses two finishes on an M4 for the barrel: parkerizing and chrome lining. Nitrocarburizing could narrow it down to one process which provides equal durability inside and out. Hell, it could be used for the other steel parts too. Not sure if it's compatible with aluminum though.

[ABNAK]

Robb Jensen was talking about putting a couple hundred rounds through one.
Cleaning all the fouling out.
And sending it out for the treatment.

Something about peak accuracy after that many rounds.

What process was he using to "strip", if you will, the bore of all firing residue? I think it would involve more than just Hoppes and a bore brush to get it to that level.

There is a guy on HKPro who did it to his MR556 barrel. I can't remember exactly what he did to get all of the fouling from the lands and grooves. I'll have to see if I can find his thread.

[polymorpheous]

What process was he using to "strip", if you will, the bore of all firing residue? I think it would involve more than just Hoppes and a bore brush to get it to that level.

There is a guy on HKPro who did it to his MR556 barrel. I can't remember exactly what he did to get all of the fouling from the lands and grooves. I'll have to see if I can find his thread.

He'll if I know.
I couldn't get a response from the guy.
I'd appreciate any info you can find though.

[Sparky5019]

So they melonite some barrels.
So does DSA.
Both are hobby rifles.

Wasn't it CMMG that put out a bunch of crap barrels?
But I digress.

Less trolling and more on topic discussion please.

Agreed. I was being tongue in cheek. I agree anyone can put out a bad batch.

I would say that this treatment (by whichever brand name one chooses), probably withstands bimetallic jackets used with steel cased ammo better than chrome lining.

Sparky

[Drummer]

There's a patent held by Noveske related to it...

http://www.google.com/patents/US8333029

It appears that the patent is for a combination of using nitrocarburizing with H13 steel, which is made to resist thermal fatigue.

[polymorpheous]

Agreed. I was being tongue in cheek. I agree anyone can put out a bad batch.

I would say that this treatment (by whichever brand name one chooses), probably withstands bimetallic jackets used with steel cased ammo better than chrome lining.

Sparky

Heat kills barrels.
The bimetal jacket likely created more friction in that Lucky Gunner torture test.
If it can be quantified that the melonite bores create less friction than their chrome lined counterpart, I'd be inclined to agree with you.

Personally I hate shiny guns, so the treatment appeals to me because my barrel is in the white.
The wear resistance is a big bonus. (How many rounds did that Glock have through it in Pannone's torture test?)

BTW, there needs to be a tongue in cheek smiley.