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Thread: What is the most common thread for a .30 cal sound moderator?

  1. #1

    What is the most common thread for a .30 cal sound moderator?

    As above really. I want to be able to walk into a gun shop and ask for a moderator 'to fit this please' and be fairly confident they'll have at least one. I'm asking because I'm looking at getting a barrel threaded.

  2. #2
    Don't know if it's 'standard' as such, but all my rifles have 1/2" UNF threads. I believe it's the standard factory thread on CZ rifles, but my two A-Bolts have been threaded after they left the factory. I think Browning use 14x1 as standard, for what that's worth?
    A Man should be wise, but never too wise. He who does not know his fate in advance is free of care

  3. #3
    Better off finding a mod what you want, checking what thread sizes they manufacturer in, and then getting the rifle cut to that spec
    Sako 75 6.5x55mm-Z6i 3-18x50. MauserM12 .308-SIII 6-24x50. Beretta 690 III Field 12b.
    "You have enemies? Good. That means youíve stood up for something, sometime in your life."
    Sir Winston Leonard Spencer Churchill (1874-1965)

  4. #4
    depends on barrel profile
    but given .30cal is 7.63mm and 1/2"UNF is 12.7mm

    that leaves 2.54mm of wall on each side

    I had my 1/2"UNF cut, sporter barrelled 300wm shortened, recrowed and cut to 14x1
    which may not sound much but its a 25% increase in wall thickness.

    go for the thickest you can get with a solid surface for the mod to butt up against IMO

    all mod makers account for all manner of common threads
    1/2", 5/8", 14x1, 15x1, 18x1 etc etc

  5. #5
    +1 on barrel profile 1/2 inch on a heavy barrel would be cutting away some material.
    I'm pretty sure my Sendero was 5/8 due to its diameter.

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