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Author Topic: Nitride VS Chrome-lined: WTA's thoughts  (Read 2568 times)

Unobtanium

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Re: Nitride VS Chrome-lined: WTA's thoughts
« Reply #25 on: February 11, 2017, 10:13:37 AM »
Over thousands of rounds, I think chrome lined holds up better. I have around 5500 rounds or so on one of my rifles, and still shoot 1-1.1MOA 10-shot groups at 100 with it using a NF 1-4 scope. 2000 of those rounds were wolf bi-metal jacketed junk ammo at a Nightfighter course. Weapon has seen several carbine courses, run smoking hard on occasion. Still does the deed when I plop down at a bench and shoot for groups.
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    Roper1911

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    Re: Nitride VS Chrome-lined: WTA's thoughts
    « Reply #26 on: February 11, 2017, 10:30:46 AM »
    all the charts and studies I've seen don't give chrome an edge until you hit 10-15k rounds.
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    Unobtanium

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    Re: Nitride VS Chrome-lined: WTA's thoughts
    « Reply #27 on: March 07, 2017, 05:40:29 PM »
    Chrome lining was a nice feature back when issued ammo was corrosive.  While there are still some stocks of corrosive Soviet and Eastern ammo, all of the new production - and certainly all 5.56 Nato - is non-corrosive. 

    Especially in 5.56 AR barrels, chrome lining's negative effect on accuracy far outweighs its minimal effect on bore longevity.

    Just what kind of accuracy are you demanding from a hard-use carbine? Here I am shooting a group from my DDM4 that I've slammed 5k+ rounds through, including several thousand bi-metal jacket, etc. in carbine courses. This is by far not the best group it's shot, either. Typically if I do my part, it averages around 1.1-1.3" for 10 shots at 100 yards. Most people use 3 or 5 shot groups to quantify accuracy here on the internet. To that end, I've shot plenty of 0.25MOA groups, ROFL! Oh, and that's using 75gr Gold Dot duty-grade bonded ammo, not FGMM or something, and that's a 1-4 NF with FC-2 reticle you're looking at, not a 3-9 or some mess.




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    LowKey

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    Re: Nitride VS Chrome-lined: WTA's thoughts
    « Reply #28 on: March 08, 2017, 12:23:40 AM »
    I think it's explained fairly well in this video....
    https://www.full30.com/video/8f93ff8d61f310084650eabb90aa4e2e

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