G&R Tactical
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Thread: Sig 551s are inbound.

  1. #241
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    Quote Originally Posted by plnkr1234 View Post
    Yes, I see that, too. Can you tell me what the other settings are on your 751 valve? Are they 1.4/1.6/x?
    No, the settings are 1.9/1.7/1.2/X.

  2. #242
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    Quote Originally Posted by Bret View Post
    No, the settings are 1.9/1.7/1.2/X.
    Interesting. The valve that came with my 20" bbl is 1.6/1.4/1.0/x so it looks like they did take into account the longer rifled bbl length on the 20". It still seems over gassed, though.

    When you said yours worked on 1.2, was that with a suppressor? Maybe I'll try mine on the 1.0 setting.

  3. #243
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    No. All the ammunition that I listed above was fired at the 1.2 setting without a suppressor. I wish my valve had 1.4/1.2/1.0/X. Let us know how yours works on the 1.0 setting.

  4. #244
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    Quote Originally Posted by Bret View Post
    No. All the ammunition that I listed above was fired at the 1.2 setting without a suppressor. I wish my valve had 1.4/1.2/1.0/X. Let us know how yours works on the 1.0 setting.
    Will do. Won't be for another week though.

  5. #245
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    Quote Originally Posted by Bret View Post
    No. All the ammunition that I listed above was fired at the 1.2 setting without a suppressor. I wish my valve had 1.4/1.2/1.0/X. Let us know how yours works on the 1.0 setting.
    Got to the range earlier than I thought I would. I tried the 751LB 20" on the 1.0 gas valve setting. It didn't seem over gassed compared to the 1.4 setting. Brass ejected 15 feet to 3 o'clock or so (compared to 30 feet to 1 o'clock on the 1.4 setting). The case necks were also less dented and the case body had minimal to no dents (compared to severe denting of the case neck and body on the 1.4 setting). The ejection pattern was a little more erratic but the bolt still locked back.

    I wish my valve had 1.3/1.1/0.9/x.

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