Shooting Range in Vegas sharing info on what works and what doesn't...

[C4IGrant]

I know most of you have seen Henderson Defenses posts about what guns, optics and mags work. It is pretty telling. I was recently looking at some of his posts on another forum and thought I would grab a couple interesting topics to discuss.


The first one is in regards to the HK MR556:

I purchased a FACTORY brand-new MR556 and it started keyholing after only 10,000 rounds. I was SO pissed because I spent all that money on the gun and it couldn't last 10,000 rounds. I had barrels from before we even opened the range with 1,000's of rounds on them from J&T Distributing (chrome-lined) that didn't keyhole well into the 80,000-100,000 range. I don't know who makes or made the J&T barrels but I was so pissed that actually wasted the money on a MR556 and that's all I got from it.

For those that don't know, the MR556 has a melonited barrel (not Chrome Lined like the 416). From talking to several BIG AR manufacturers, they reported that melonited barrels failed accuracy reqs well under 5,000rds when shot on FA. Apparently on SA, it takes a bit longer to fail (10k). Interesting....


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[titsonritz]

The cat's out of the bag.

[docsherm]

That is really good information. Can you post the name of the article so that we can search for the original? I know we can't post links to other places but this way we can find it.

Thanks

[Cane55]

Are you sure the HK MR556's are melonited? I contacted HK to ask about this in 2013 and they told me their MR556 barrels are neither chrome lined nor are they melonited/nitrided. Maybe HK just started meloniting them?

[Arik]

..........

Sent from my XT1650 using Tapatalk

[C4IGrant]

That is really good information. Can you post the name of the article so that we can search for the original? I know we can't post links to other places but this way we can find it.

Thanks

PM sent.



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[KalashniKEV]

That is really good information. Can you post the name of the article so that we can search for the original? I know we can't post links to other places but this way we can find it.

Thanks

I hope there's no issue with posting a link to the TFB article:

http://www.thefirearmblog.com/blog/2...-rental-range/

It's old (September 8, 2015), but has been pasted to about every major site over the years.

[TMS951]

How about other melonited barrels, I have a personal issue with LWRC based off the upper I bout from them, but are their barrels not forged and melonited? What kind reports on these?

As another poster said, it was my impression the MR556 is not melonited or anything similar.

[C4IGrant]

Are you sure the HK MR556's are melonited? I contacted HK to ask about this in 2013 and they told me their MR556 barrels are neither chrome lined nor are they melonited/nitrided. Maybe HK just started meloniting them?

Yes. HK USA confirmed they are coated.


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[C4IGrant]

How about other melonited barrels, I have a personal issue with LWRC based off the upper I bout from them, but are their barrels not forged and melonited? What kind reports on these?

As another poster said, it was my impression the MR556 is not melonited or anything similar.

All the same. 3 of the largest gun companies have tested melonited barrels on their FA guns and decided to not use it.



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