Bolt action rifles with nitrited barrels?

[os2firefox]

Are there any rifle manufacturers that make bolt action rifles with nitrited barrels (melonite)?

I have seen thompson center's weather shield and remington's trinyte, but iirc, they only coat the outside of the barrel and not the inside.

 

[Flyingbullseye]

Barrels? I highly doubt it. You wouldn't want to cut and thread it after its been nitrided. You do that after its been fit and only for CM barrels. As for actions I believe Stiller does.

 

[Rockfish Dave]

There is no way that I am aware of to treat only the exterior of a barrel. It is dipped in a (melted) salt bath to give the finish.

If you send the clean and disassembled parts to Rock Creek Barrels they will get them treated for you.

Reach out to Paul. He is very helpful and will be able to answer any questions you might have.

Rock Creek Barrels [email protected]

 

[HodgdonExtreme]

Barrels? I highly doubt it. You wouldn't want to cut and thread it after its been nitrided. You do that after its been fit and only for CM barrels. As for actions I believe Stiller does.

Works fine on stainless, too.

 

[HodgdonExtreme]

There is no way that I am aware of to treat only the exterior of a barrel. It is dipped in a (melted) salt bath to give the finish.

If you send the clean and disassembled parts to Rock Creek Barrels they will get them treated for you.

Reach out to Paul. He is very helpful and will be able to answer any questions you might have.

Rock Creek Barrels [email protected]

MMI TRUTEC and H&M metal processing are happy to SBN barrels/parts as well.

 

[leadbullet]

I had a nitrided barrel and will never ever do another, can't do a thing to them once the throat is done, can't set them back just toss them, waste of money to me
Cheers

 

[proneshooter]

There is no way that I am aware of to treat only the exterior of a barrel. It is dipped in a (melted) salt bath to give the finish.

It's not a finish, paint is a finish. It's a case hardening heat treatment.

 

[Rockfish Dave]

It's not a finish, paint is a finish. It's a case hardening heat treatment.

Really? [\sarc] No shit Sherlock, of course it is a heat treat. I literally have been doing barrels for years. I was keeping it simple and in the context of the OP. The finish increases the hardness while leaving the appearance black and can be either flat or glossy.

Seems like there is always one that want's to show off what they read on the internet... This might help you next time:

Finish - Definition and More from the Free Merriam-Webster Dictionary

1
: something that completes or perfects: as
a : the fine or decorative work required for a building or one of its parts
b : a finishing material used in painting
c : the final treatment or coating of a surface
d : the taste in the mouth after swallowing a beverage (as wine)

 

[proneshooter]

Seems like there is always one that want's to show off what they read on the internet... This might help you next time

Don't need your help but thanks for offering. Been making precision metal parts and dealing with all kinds of different heat treats for years. In the real world, not on the internet.

 

[Rockfish Dave]

MMI TRUTEC and H&M metal processing are happy to SBN barrels/parts as well.

The contact is for MMI. They do not do individual customers and have a contractor that handles individuals. MMI has done all my heat treating, and given how much this stuff costs in time and money I have not felt the need to experiment with H&M.

I have not used H&M, but when I spoke with them they were more than happy to handle my order directly. That was some time ago so that may not be the case today.

What is your experience?

 

[proneshooter]

I also wonder if any of the laymen who like to nitride things that weren't meant to be nitrided know that nitriding will change the dimensions of the part? It may or may not matter depending on the closeness of the fit of mating parts, but change they will.

 

[MLC]

I had a nitrided barrel and will never ever do another, can't do a thing to them once the throat is done, can't set them back just toss them, waste of money to me
Cheers

What did you use to shoot out the throat and how many rounds?
Who did the nitriding?

 

[wildfowler]

Barrels? I highly doubt it. You wouldn't want to cut and thread it after its been nitrided. .

I had my nitrided barrel threaded by ADCO.

What problems have I brought upon myself unknowingly?

So far, I have not had any issues that I am aware of.

Thanks.

 

[proneshooter]

I had my nitrided barrel threaded by ADCO.

What problems have I brought upon myself unknowingly?

So far, I have not had any issues that I am aware of.

Thanks.

You won't have any problems as an end user.

He is referring to the hardness of the case on nitrided steels, which can reach the high 50s - low 60s on the Rockwell C scale. That is a problem during machining unless you have the right inserts and have some experience with feeds and speeds to make good cuts without ruining your cutting tools.

 

[Rockfish Dave]

I also wonder if any of the laymen who like to nitride things that weren't meant to be nitrided know that nitriding will change the dimensions of the part? It may or may not matter depending on the closeness of the fit of mating parts, but change they will.

I am very interested in the dimensional changes. What have you found in your vast experience? Please enlighten me.

If you would be so kind also speak to the practical measurable impact in performance that having actions and barrels nitrided, I will be very interested to hear this.

 

[proneshooter]

I am very interested in the dimensional changes. What have you found in your vast experience? Please enlighten me.

Enough to close the actual tooth space on ANSI B92.1 class 5 external splines to the point where the go ring gauge will not fit after nitriding on a significant numbers of shafts in a batch if the splines are cut near the high limit of the diameter over pins.

If you want the data, that's proprietary. If you don't believe me, I don't care. You're not my customer nor do you sign my paycheck or peformance evaluations.

 

[Adam B]

I had a nitrided barrel and will never ever do another, can't do a thing to them once the throat is done, can't set them back just toss them, waste of money to me
Cheers

they can be rechambered with a carbide reamer, Dave Kiff suggested doing this

 

[Ring]

i have done 1 barrel at MMI, and 12 or more at H&M, i have done AR BCG's, savage and remington receivers and bolts, i have done complete guns and parts, and pistols and savage triggers

my reviews.. https://sites.google.com/site/freeballisticcalculator/black-nitride-melonite-and-qpq

pics of some of the work i have had done..

H&M Metal Processing Black Nitriding - Minus

if you call H&M, talk to Shade, tell him Russ from the forums sent you... they will hook you up.

 

[Rockfish Dave]

Enough to close the actual tooth space on ANSI B92.1 class 5 external splines to the point where the go ring gauge will not fit after nitriding on a significant numbers of shafts in a batch if the splines are cut near the high limit of the diameter over pins.

If you want the data, that's proprietary. If you don't believe me, I don't care. You're not my customer nor do you sign my paycheck or peformance evaluations.

Please explain how this is relevant to rifle barrels (and actions)?

and to my original point: If you would be so kind also speak to the practical measurable impact in performance that having actions and barrels nitrided, I will be very interested to hear this.

 

[proneshooter]

Please explain how this is relevant to rifle barrels (and actions)?

Do you not know how to read? I said that the consequences of nitriding growth depend on the closeness of the fit of individual parts. It's there for the user to evaluate and decide if it will matter to him or not.

and to my original point: If you would be so kind also speak to the practical measurable impact in performance that having actions and barrels nitrided, I will be very interested to hear this.

Since you're a hotshot barrel maker, I'm sure you already know.

 

[Rockfish Dave]

Do you not know how to read? I said that the consequences of nitriding growth depend on the closeness of the fit of individual parts. It's there for the user to evaluate and decide if it will matter to him or not.

Since you're a hotshot barrel maker, I'm sure you already know.

No need to be hostile.

Just asking for clarification on your claims. So to summarize there is no impact what so ever on the "practical measurable impact in performance that having actions and barrels nitrided". In fact it only has an impact in instances of extreme tolerances (.00x). So for the purposes of the OP's question, it is irrelevant.

Just for a little clarification of my own since you made the claim: I am not a "hotshot" or otherwise barrel maker.

 

[proneshooter]

So to summarize there is no impact what so ever on the "practical measurable impact in performance that having actions and barrels nitrided".

I have never said that. You assume that I did because I haven't answered your question.

Nice try.