had some rifles Nitrated..

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i just took a tour of http://blacknitride.com/ , H&M Metal Processing, they do all the SBN-QPQ/melonite for S&W, LWRC, AAC, robinson arms, KRISS, and a ton of custom pistol and rifle makers...

i just had them do 2 guns for me im testing
PICS http://minus.com/mdyTh2V


ill be doing a wright up and full review of them in the next few weeks, since i also had work done by MMI Trutec, but to start, they are much better then MMI "they built and owned MMI, but sold it to Trutec "jap company" years ago"..

Article on SBN
http://bulletin.accurateshooter.com/2010/09/salt-bath-nitriding-for-barrels-whidden-is-impressed/
 
Looks great, looking forward to the write up; how thick is the coating and what metals does it adhear to?--Just a couple of questions on my mind on any coating.
 
its not realy a coating, its a "treatment", think of it like case hardening..

The main advantage of Melonite barrel treatment is that it reduces friction in the bore and lessens bore surface wear, potentially extending barrel life. Melonite-treatment of a bore creates a new compound layer in the top 10-20 microns of the surface, creating a very hard, slick surface.

it can be done to any ferrous steel....

per LWRC's page,
surface conversion has proved more lubricious, harder wearing, more heat and corrosion resistant than the hard chrome normally used in the bore. Our barrels can handle 20,000 rounds before replacement, as compared to 6,000-10,000 rounds on a standard M4.
Click to expand...
 
DOUBLE the barrel life is exactly why the .Gov may make nitrided barrels the new milspec - along with hammer forging. The only reason we still button rifle M4 barrels is that Colt doesn't want to spend millions on a hammer forging barrel machine.

Ruger, Remington, FN, and others have hammerforged barrels - most US pistols and hunting rifles have them. Almost all European military and civilian sporting guns have them. Just the M4 lags behind in arms development.

Since chroming is now an expensive high cost hazmat intensive waste disposal problem, and nitriding dirt cheap and in common use for automotive engine parts, expect more of it. The barrel, bolt, and carrier on my 6.8 frankengun were nitrided, and it's a very old technique for crankshafts. Not getting a remachined crank nitrided means it's good for about 50k, and then it's junk, but the happy hot rodders out of the loop don't know or care.

To remove it, you have to machine it, rust can't creep under it, and it doesn't build up out of spec in barrel rifling the way chrome can't be prevented. That's why precision nitrided barrels are inherently more accurate - the same barrels off the same machining won't change dimension with nitriding. With chrome, you will airgauge them and discard or lap the bad ones. That's why milspec issue rifles are 2MOA - effective, but not all that great.

In about 5 more years, a hammerforged nitrided barrel will be cheaper than button rifled chrome, more accurate, and a lot more common. If you want chrome, you will pay a higher price and get less.

Progress marches on.
 
I wouldn't mind having my 1911 refinished with melonite. What's the cost for a colt slide, barrel, frame, MSH and grip safety? :evil:
 
200 ....AFIK

u would need to strip the gun down, the big thing is NO SPRINGS... springs + 1000+ degree heat dont mix

call
(330) 745-3075
as for Shade, tell him you saw Russ's post and told you to call... he will set you up and give you any info you need... i just saw a kimber done, it was nice.. it makes it even smoother

he will even do the safety, "fixed" sights "you will lose any white dots though, and no night sights... and slide release and mag release for that.... litterely, the complete gun minus any springs..
 
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