I got it from Little Crow Gunworks through Gunbroker a couple of years ago. Great folks to work with
Their website
http://www.littlecrowgunworks.com/
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I got it from Little Crow Gunworks through Gunbroker a couple of years ago. Great folks to work with
Their website
http://www.littlecrowgunworks.com/
INSIDE PLAN OF BOX
- ROAD-RUNNER LIFTS GLASS OF WATER- PULLING UP MATCH
- MATCH SCRATCHES ON MATCH-BOX
- MATCH LIGHTS FUSE TO TNT
- BOOM!
- HA-HA!!
-WILE E. COYOTE, AUTHOR OF "EVERYTHING I NEEDED TO KNOW IN LIFE, I LEARNED FROM GOLDBERG & MURPHY"
I am American
Smoother bore, more consistently accurate chamber dimensions, longer lasting.
Evidence for this?
-Recent PiP projects regarding hammer-forged barrels.
-Personal experience with how much less fouling my CHF barrels accumulate than other methods.
-Fact that many CHF barrels have the chamber formed at the same time as the bore vs. cut separately. They are either all correct, or all wrong. Hopefully correct, lol. Also eliminated are burrs from the chamber reaming where it joins the rifling.
Last edited by WS6; 05-13-13 at 13:56.
It seems like the issues are getting confused. The original question was over having a preassembled Noveske 416R barrel nitrided vs a hammer forged chrome lined barrel.
I've come to the conclusion that treating a pre-assembled barrel, regardless of whether it's 416R or CMV is not ideal because the barrel and extension threads will contain remnants of the salts and will corrode. YMMV. Finding a 416R hand lapped and nitrided is almost impossible AFAIK. That would be the best of both worlds.
Don't believe button rifled barrels can be some of the most accurate out there? Try Noveske, White Oak/Wilson, ARP, Shilen or Lilja blanks, and a handful of others.
Can you get a sub-MOA chrome lined barrel? It's possible but out of how many? A few match button rifled hand lapped barrels even come with guaranteed sub-MOA accuracy.
Pick one and shoot it until the accuracy is sub-standard. Don't over-think it.
"If force can take away liberty, force is necessary to preserve it. It is the hatred of violence alongside the willingness to use violence that preserves liberty. In order for us to live as free men, we have to hate the violence that takes away liberty, yet at the same time, we must embrace the violence that preserves it. That is the paradox our founders appreciated and made work for over 200 years."
-Christopher Brownwell
Yep, that's it. The military is willing to compromise MG barrel life to save a buck.
Care to cite your sources? I'll cite mine:
"Cold Rotary Forging of Small Caliber Gun Barrels"
US Army, Rock Island Arsenal Directorate
Summary Comments:
- Metallurgical analyses demonstrate that rotary forged barrels meet or exceed military requirements.
- Improved grain structure, increased toughness, better corrosion resistance, and finer surface finish result from the process.
- In general the geometry and surface finish of the mandrel are reflected precisely in the barrel bore.
- Bore finishes of 8 micro inch (arithmetric average) or less are possible.
- Rotary forged barrels exceed military accuracy requirements
- Bore variation is drastically reduced and straightness increased.
- Variations of less than .00015 inches are common.
Benefits:
- metallurgically improved weapons due to finer microsturcture.
- much higher production rates for difficult to machine supper allow barrel materials required for rapid firing weapon systems
- the ability to produce extremely accurate small arms independent of operator skills
The barrels they tested were .50 cal of various types, 7.62 GAU, M219, 7.62 MG's, M-14's, and M16A1's.
Can CHF Steyr process reduce cost? Over a large number of barrels, yes. But requires a very high initial outlay for the GFM Machines and associated heat treat lines.
Can it make a higher quality product for less than what it would take to make equal product using traditional methods? For sure. But it's not just a cheap way to make barrels.
Many people are lumping earlier hammer forged processes with the Steyr CHF, and they are not the same. US developed processes (Torrington) did not produce the same results. Hot rotary forging did not as well.
You are right about one thing.... it is a process, and heat treat process is critical. Goof that up and you probably lose any advantage. But that's a core production quality issue.
Is it surprising that FN and Euro mfg'd barrels with this process might be higher quality than Ruger/Remington???? Not to me.
If someone has data that FN or similar CHF barrels are not holding up as well as traditional rifling that would be very interesting data to see.
What I've read of the various M4 testing for the improved carbine and M4A1 was that the CHF barrels beat the traditional in every case. In fact, after one widely cited test, all M4 barrels had to be replaced, where none of the CHF HK416 or XM8 barrels had to.
I'll be the first to admit that I've not done 50k round direct comparison tests on M4'ish barrels to publish a result that XYZ mfg CHF barrel will last X longer than traditional.
But I do know enough about the Steyr process results and history to state as fact, it's not done just for cost savings!
But buy what you want. Most folks will not shoot enough to see the difference. I know what I prefer, and it's based on the long history of CHF in premium arms.![]()
Last edited by pinzgauer; 05-13-13 at 15:41.
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