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Thread: OPEN 65G "Monster" Bolt Buy E $58 Shipped

  1. #21
    Bloodstained Wafavre2's Avatar
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    Feb 2017
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    Thanks BTF! Received one fine looking bolt today, very pleased!

    Thanks,

    Will

  2. #22
    Warrior
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    Here is something to go with these bolts.

    https://www.deltateamtactical.com/Ge...eid=31b87f4fc4

    Need to add firing pin, bolt cam pin and cotter pin.
    Last edited by bj139; 10-13-2017 at 01:52 AM.

  3. #23
    Warrior
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  4. #24
    Warrior
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    How do these compare to the Lehigh Defense 6.5 Grendel bolts? Similar?

  5. #25
    Very similar. Except for the 6.5 Grendel "Monster" logo lasered on the side. Bwhahahaha!

    Seriously, these ARE Lehigh Defense, or more properly, Millennium Manufacturing bolts (they are sister companies). I think I put that info in my original post?
    :: 6.5 GRENDEL :: Make ARs Great Again ::

    :: I Drank the Water :: Revelation 21:6 ::

  6. #26
    Bloodstained Crippleshot1's Avatar
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    Email sent. Payment sent through PayPal
    Thank you for your efforts.

  7. #27
    Unwashed
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    Noob question: Is it important to match the bolt with your barrel? It seems not so much with the group buys I'm seeing here. Thoughts, please?

  8. #28
    Warp: Yes and no. When firearms factories assemble a rifle, they use gauges to make sure the headspace is correct, right? They're basically making sure the "barrel matches the bolt." So when we have an enthusiast assembling his own gun, what do we do? Does he suddenly not need headspace gauges to verify proper headspace? Theoretically, yes, he does. On the other hand, these AR bolts are designed to be a mass-produced, interchangeable part. On the other hand, yet again, manufacturing variances and tolerance stack are a reality.

    In the AR homebuilding world we may not need to match a particular barrel to a particular bolt, but you do need to make damn sure your barrel is chambered for a corresponding boltface depth. You must know whether your barrel is chambered for a 0.136" boltface depth or a 0.125" boltface depth. And then you get the bolt appropriate to that depth. In that sense, you need to match bolt to barrel.

    Bottom line is the AR homebuilder would be wise to use headspace gauges to verify headspace, even with a barrel that uses the appropriate bolt, since he is now taking responsibility to act as his own firearms factory. One skips that step at his own risk.
    :: 6.5 GRENDEL :: Make ARs Great Again ::

    :: I Drank the Water :: Revelation 21:6 ::

  9. #29
    Warrior
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    This got me thinking so I did some searching and found this.

    http://www.gswagner.com/headspace/headspace.html

    He states if a case stretches upon firing more than 10 to 12 thousandths of an inch it is probably unsafe to fire.

    Since the body is stretching, measuring the case from the base to the neck, before and after firing should tell you the headspace.

    I will try to remember to take a dial caliper to the range and measure.

    I wonder if Wolf steel ammo stretches upon firing?

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