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Thread: BCM vs. DD hammer forged barrel offerings?

  1. #51
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    Quote Originally Posted by Iraqgunz View Post
    Interesting. I have never heard that before and I also own several AR's with CHF barrels. Not even sure how that would be possible.
    They are much smoother. Buttons create chatter. Some more some less. Chf has no chatter. This chatter is what the copper collects in along with other fouling. I figured it for bs myself until I notice the difference in cleaning various barrels of copper with a color reactive solvent.

  2. #52
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    Barrels with a smoother surface finish in the bore tend to foul less. You can chrome over chatter marks but the marks are still there
    INSIDE PLAN OF BOX
    1. ROAD-RUNNER LIFTS GLASS OF WATER- PULLING UP MATCH
    2. MATCH SCRATCHES ON MATCH-BOX
    3. MATCH LIGHTS FUSE TO TNT
    4. BOOM!
    5. HA-HA!!

    -WILE E. COYOTE, AUTHOR OF "EVERYTHING I NEEDED TO KNOW IN LIFE, I LEARNED FROM GOLDBERG & MURPHY"

    http://i115.photobucket.com/albums/n289/SgtSongDog/AR%20Carbine/DSC_0114.jpg
    I am American

  3. #53
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    Quote Originally Posted by MistWolf View Post
    Barrels with a smoother surface finish in the bore tend to foul less. You can chrome over chatter marks but the marks are still there
    Exactly. Compare carrier gas chambers for an example of this. Shitty ones are rough regardless of hard chroming.

  4. #54
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    I can't speak to the quality of BCM barrels since I've never shot one, or even inspected one; however, I can speak the the quality of at least one DD barrel.

    Last year I did a re-barrel project on an upper that needed a new barrel and I purchased a Daniel Defense 18" S2W for my project. I selected this barrel for a budget accuracy build to see what I could put together for a reasonable price, with the goal of mostly just having a fun AR to play with and shoot some prairie dogs on occasion. I think it was a good choice, and the following are my observations for anyone who cares.

    For anyone that doesn't already know this particular barrel is not chrome lined, but is instead melonite (spelling?) finished inside and out. The barrel extension was also treated to the same finish although the feed ramps were polished to a near mirror finish, which is a nice touch. If lots of high round count rapid fire drills are your goal with a barrel you might be better served with a hard chrome lined barrel and chamber, or maybe not; I'm not a metallurgist so I can't tell you which finish process will result in superior surface characteristics for different applications. I can tell you that the bore and chamber were flawless as delivered with no obvious machine marks or any other defects I could discern with the naked eye, furthermore fired cases show no signs of a rough chamber or any other undesirable finish quality. This barrel collects very little copper or other fouling with any ammo I have run through it other than filthy ass Wolf which gives a lot of carbon. My latest efforts have been reloads, and I've been running CFE 223 for powder and that stuff works great, both accuracy wise for me and for eliminating copper fouling.

    I will also note that the gas port on this barrel is in the mid-length location, but was noticeably smaller than the gas port on the junker CMMG 16" that I pulled off. I did not measure the diameter, so sorry about that. The affect of the smaller gas port is a rifle that runs great with a standard H buffer, and that piles up brass in a nice consistent pile about 4.5-5 feet strait to the right and slightly forward, both with the old gas block and a Syrac Ordnance adjustable when using ammo that is full pressure. When I put the adjustable block on, light loads like Wolf 55gr started to short stroke and I was losing gas from the roll pin area since I didn't get the pin seated well. I have since corrected that, but don't have any strong desire to shoot anymore Wolf 55gr to re-test. All other ammo has worked flawlessly. Honestly the standard non adjustable low profile block was probably a better bet, and I may reinstall it since the smaller port seems perfect with the less finicky adjustable block which I bought to reduce over gassing the rifle... which the smaller port handily solves.

    As for accuracy, I have been stunned at how good this barrel is. I realize that every barrel is a law unto itself, but mine has been way more accurate than a $250-$300 barrel with a NATO spec chamber has any right to be. With 77gr Matchkings I can routinely get 5 shot groups of .5-.75 MOA which I thought was a fluke, but both Black Hills factory 77gr loads, and my reloads have duplicated those results on more than one session.

    If other DD barrels are this good I don't see any reason to buy any other brand of barrel for any other future builds, short of a Satern, Kreiger, or Rock if were to build a national match rifle (which I'm not skilled enough to do anyway..).

  5. #55
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    Quote Originally Posted by WS6 View Post
    Daniel defense feed ramps are hand polished. One at a time.
    They maybe now but the one I have isn't.

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