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Thread: Current Production Lightweight 11.5 or 12.5 Barrels?

  1. #131
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    Excellent, thanks for the report! Seems to really like 77gr.

  2. #132
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    For quick groups with a red dot, I was very happy. Did seem to like the TMK and the 64 gr Gold Dot is my main HD load so no complaints there. Have some some to try and hopefully will have more time. Been keeping my eye out for an Aimpoint 3x magnifier at a good price to try also.

    To me the balance is what is most surprising, for a 12.5 with full size can it feels very handy.


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  3. #133
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    I think I am going to go ahead an grab one of these Core barrels. I will likely get a Centurion upper as well, because why not.
    ETC (SW/AW), USN (1998-2008)
    CVN-65, USS Enterprise

  4. #134
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    The 12.5 upper and soon be built 13.9 where built for a specific purpose, pistol and rifle set up identically that with a law folder can drop in a backpack.

    However I keep having the same thoughts as you, 14.5 core mid, front sight block, centurion C4 Mlok cutout rail. Don’t need it, but sure would be fun.


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  5. #135
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    Thanks for this post. Definitely puts to rest some of the concerns that I had.

    Can somebody try this barrel with 77 gr Federal? Lots of folks have been getting great results with that ammo recently.

  6. #136
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    I have some 77 and 69 gr FGGM I will try didn’t have time yesterday. Will also try some slower fire 10 roundsgroups with TMK and GD 75 and 64Gr.


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  7. #137
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    My 14.5" Core barrel has been sitting here almost a month now. Just waiting for my handguards to arrive which are taking forever so I can put it all together. It's killing me!

  8. #138
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    Here are some simple groups with a RDS and bulk 55gr Norma at 50 yards. I do feel I could have shot a little better, but am happy with it for bulk ammo.

    Pictures won't load, but I shot 4 5-shot groups averaging 1.3" between the four groups. Groups printed consistently without stringing, or anything else. Two groups were 1.1x, two groups were 1.5x.

  9. #139
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    Quote Originally Posted by js8588 View Post
    So what are the correct weight specs? Also the .064 gas port has me thinking it's likely not the correct choice for me. Usually I'll be running M855 in this build (sub moa accuracy is not a concern) but I like my ARs to be able to cycle & lock back using anything should the occasion ever arise where ammo on hand isn't a matter of choice. I do not own a suppressor & have no plans to.
    I tested it with PMC Bronze since I was at the range. Locked back just fine on all five shots.

  10. #140
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    Quote Originally Posted by taekwondopreacher View Post
    I tested it with PMC Bronze since I was at the range. Locked back just fine on all five shots.
    Thank you. I will be ordering one.

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