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PODCAST: FAXON Q&A: BARREL MFG, NITRIDE VS CHROME LINING AND MORE! (Patreon)

Published:
2017-03-05 13:53:05
Imported:
2026-06

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Content

http://faxonfirearms.com/

We speak with Nathaniel from Faxon regarding barrels, barrel manufacturing, chrome lining versus nitride and more.

If you're interested in learning what really is going on with rifle barrels, then this is the video for you!

1:20 Difference between chrome lining and nitride treatment.

3:40 High Power and chrome lined barrels being “less accurate”? Stainless barrels for accuracy, accepting greater wear and tear. History of chrome lining basics. Nitride is not a lining, it’s a treatment.

6:50 When did the nitride process come to the market?

8:00 Chrome lining still makes more sense for machineguns.

9:10 The ACR took an unfair hit from the consumer base for not having a chrome lined barrel?

11:05 Nitride process is beneficial to other components besides just the barrel.

12:21 Is this related to stellite? The difficulty of manufacturing a stellite enhanced barrel.

13:50 What is QPQ, etc?

15:10 Nitride process is very similar to the older 1800’s process of case hardening. What is case hardening?

16:05 How deep does the nitride process penetrate into the steel? Case hardening is usually only a superficial layer, for example.

17:20 Nitride for military arms?

18:15 Extreme example of high velocity projectiles, is that better with chrome or nitride?

19:44 Stainless steel that’s used for barrels isn’t really the “stainless steel” we think it is. Why are stainless barrels considered more accurate?

20:54 Discussion about different methods of rifling a barrel.

27:10 Cold Hammer Forging invented by Germans in WW2 to accelerate barrel manufacturing. USA used cut rifling primarily during WW2 and those machines are still being used today.

27:45 What is cut rifling?

29:00 Replacing a cutting bit for cut rifling, what about button rifling? Deep dive into button rifling process.

29:50 Discussion about progressive twist rifling.

31:41 Accuracy then and now, what is acceptable?

34:05 Original M16 pencil barrels, how were they manufactured?

Files

Comments

John R. Dorn

Thanks guys. Very interesting and lots of info!

VicNighthorse

I made this comment on your Full30 page and thought I should add it here too. I have been talking to manufacturers about making a barrel for my own design of rifle. Speaking with Bartlein I found that they not only do not offer nitriding, doing so after you get the barrel will void their warranty. The fellow I spoke to said that the nitriding temperatures were high enough to compromise their through heat treatment and can distort their precise work. Krieger says about the same thing in ther FAQ. I had long assumed I was going to use a nitrided barrel, especially since this will be an over-bore weapon. Now, I am a little bit depressed that things keep getting more complicated.

Grant Howard

Love the content guys, but please invest in a better camera and microphone if you plan on doing more of these online interviews.

Ratus

Great video! I'm really liking these "deep dive" technical videos.

Steve Lavalette

Hi guys. I am a big mini 14 fan. Any chance of seeing one in a 2 gun match ? Or in a mud test ? Thanks.

VicNighthorse

I hadn't expected to already know most of what was covered on one of your videos. It is usually mostly new to me. I do think that this fellow should have admitted that their were risks with nitriding. That said, for my next service type rifle like an AR, I will likely get it nitrided, but only after it is broken in. Perhaps have one of those high end precision barrel manufactures that do not recommend nitriding on when you next address the subject.

InRange TV

Yeah, that could be done. We really haven't done much with the Mini-14 because it's very common. ~Karl