.260 ar10 question

Discussion in 'Auto & Semi-Auto Discussion' started by lattin1, Dec 12, 2013.

  1. lattin1

    lattin1 New Member

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    I'm sure I could easily look this up somewhere but I figured I would just ask here and get the answer quicker. Does an AR 10 chambered in .260 just have a different barrel and the magazines and bcg are the same?
     
  2. mrm14

    mrm14 Active Member

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    The magazine for .308 Win., 7mm-08, .260 Rem., and .243 Win. are the same. The brass is the same except these various calibers have different neck diameters. The bolt carrier group is the same. Depending on what weight grain bullet you use would dictate the barrel twist.

    My brother has an AR-10 chambered in .243 Win. and it is quite accurate for what it is.
     
    Last edited: Dec 12, 2013

  3. lattin1

    lattin1 New Member

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    That's what I thought but just wanted to make sure. I already bought a barrel from dpms. Can't remember what twist but it weighs a hundred pounds and its definitely not flimsey so I'm guessing it's going to be pretty damn accurate.
     
  4. mrm14

    mrm14 Active Member

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    I use 139 grain Lapua Scenar bullets for my .260 Rem. bolt gun with a final twist of 8:1. The 140 grain Berger hybrid bullets works well too, but, the magazine has to be modified for OAL of cartridge.

    There is a 120 grain 6.5mm bullet made by Berger that will possibly be better suited for a AR type gas gun.
     
  5. Txhillbilly

    Txhillbilly Active Member

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    DPMS uses a 1-8.5 twist rate on their 260 Remington barrels.

    I have a LR-260 H DPMS rifle,and it is a great shooter,and hog killer. My rifle prefers 140 gr Sierra GameKing bullets,but shoots other weight bullets pretty good also.

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