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Thread: What thread for my suppressor - Multiple Rifles

  1. #1
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    What thread for my suppressor - Multiple Rifles

    So just having a 7mm Rem Mag being built that has a muzzle diameter of .630 inchs. I'm struggling to see what thread I can get away with. I have a single 7mm Non Magnum DPT suppressor now that is threaded 5/8x24. I use this suppressor on my 15 inch 7mm08 Bushpig, 20 inch 6.5x47, my MK V Ultralight 270 (with a 1/2x28 to 5/8x24 Adapter), my 556 AR with the same adapter. I also have a 308 I would like to get threaded.

    I was planning on buying a 308 DPT magnum in 5/8x24 again that I can then swap the baffle stacks around and can be moved between rifles.
    Obviously with .630" I can not directly thread 5/8x24 and 1/2x28 is not leaving much barrel left at the muzzle. my other prefered option is 9/16x24 but it would be very questionable whether or not I would have enough shoulder I think.

    With the bore being .284 the Muzzle being .630" and 0.636" back 0.6" What thread would be recommended by some of the smiths on here? @Kiwi Greg @DPT are two I can think of of the top of my head.

    I'd love to be able to buy the 5/8x24 Suppressor as I will likely build another magnum down the road with substantially more barrel diameter.
    Last edited by Stocky; 04-08-2018 at 10:25 PM.

  2. #2
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    why not just get different barrel adapters for the one suppressor that way you can get the best thread for each barrel contour if that is possible.

  3. #3
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    Getting the adapters is not that simple as far as I know.

    As far as I can find without adding like an inch of length the only adapters built by respected companies are made in 1/2x28 or 9/16x24 to 5/8x24.

  4. #4
    DPT
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    Leaving enough meat for a shoulder, the biggest thread for that size barrel is 15mm or under, so 15x1, 14x1 or 9/16-24, any of those three would be the preferred option.
    csmiffy likes this.

  5. #5
    Member Tuukka's Avatar
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    .63" is 16 mm and in our recommendations it is enough for M14x1

    In general our recommendation for minimum total shoulder is 1.5 mm

    | Ase Utra

    Tuukka

  6. #6
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    Major diameter for 5/8x24 UNEF is .625" so you have enough barrel, shoulder it on the muzzle face.

  7. #7
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    Quote Originally Posted by LCtikka View Post
    Major diameter for 5/8x24 UNEF is .625" so you have enough barrel, shoulder it on the muzzle face.
    How would that work?

  8. #8
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    I would suggest the inside of the silencer thread is blind so to speak. It would be bored to have the shoulder and only the calibre hole after that.
    End of barrel have some square part to seat but probably only a small crown. Is this done on anything else?
    I did a 14x1 on my 303 just in case it shoots ok for a future silencer.

  9. #9
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    I'd go with M14x1. That will leave a 1mm shoulder which is good.

  10. #10
    DPT
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    Quote Originally Posted by LCtikka View Post
    Major diameter for 5/8x24 UNEF is .625" so you have enough barrel, shoulder it on the muzzle face.
    Some suppressors you may be able to do that with but ours your cant. Most brand suppressors I have ever delt with require a shoulder behind the thread.
    Stocky and csmiffy like this.

  11. #11
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    What ever you do make it a metric thread. There is no need to use an imperial thread. Its 2019.

 

 

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