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Thread: Rifle Thread

  1. #1
    Member Sako851's Avatar
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    Rifle Thread

    Hey all,

    Sorry this is far out of my knowledge, this guy is selling a suppressor on trademe:

    https://www.trademe.co.nz/sports/hun...67af257953cf77

    He doesn't know what the thread type is, can any of your keen eyes tell?

    Thanks for your help!

    Edit: Thought I should mention I'm asking because I'm after a suppressor for my .308

  2. #2
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    Pitch seems to be 24 threads per inch, so my guess is either 1/2x24 (standard on .22LR, and my old gunworks .308 suppressor) or 3/8x24 (standard on .308 AR10's etc).
    Get a photo taken of the crown of the barrel to determine which it is.
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  3. #3
    Member Ryan_Songhurst's Avatar
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    Quote Originally Posted by quentin View Post
    Pitch seems to be 24 threads per inch, so my guess is either 1/2x24 (standard on .22LR, and my old gunworks .308 suppressor) or 3/8x24 (standard on .308 AR10's etc).
    Get a photo taken of the crown of the barrel to determine which it is.
    looks like 1/2x20 to me, have never heard of 1/2x24 being standard 22lr thread, 1/2x20 yes, if it was threaded by gunworks then pretty likely it will be, they thread most sporter weight barrels 1/2x20 unless they have been shortened more than a couple inches
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  4. #4
    Terminator Products Kiwi Greg's Avatar
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    Quote Originally Posted by quentin View Post
    Pitch seems to be 24 threads per inch, so my guess is either 1/2x24 (standard on .22LR, and my old gunworks .308 suppressor) or 3/8x24 (standard on .308 AR10's etc).
    Get a photo taken of the crown of the barrel to determine which it is.
    1/2 x 20 is the standard 22LR thread, 5/8 x 24 is the standard AR10 thread

    By the look of the pics it could well be 9/16 x 18, but its difficult without the diameter

    1/2 x 20 is a little average on a 308 muzzle to be fair

  5. #5
    Member Sako851's Avatar
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    Thanks for all the replies guys. Appreciate you all!

    He's going to contact gunworkx I believe and I will update here so the "mystery" can be solved. My .308 came with a threaded barrel also but no information as to who done it.. I'll have to post a pic up tomorrow :p

    Kind of assumed my rifle would be 5/8x24.. Read somewhere that this was the most common for .308

  6. #6
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    Quote Originally Posted by Ryan_Songhurst View Post
    looks like 1/2x20 to me, have never heard of 1/2x24 being standard 22lr thread, 1/2x20 yes, if it was threaded by gunworks then pretty likely it will be, they thread most sporter weight barrels 1/2x20 unless they have been shortened more than a couple inches
    Yep - what Ryan said.
    Got all my threads mixed up.

  7. #7
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    Quote Originally Posted by Kiwi Greg View Post
    1/2 x 20 is a little average on a 308 muzzle to be fair
    It's what they put on mine. Wasn't a great deal of meat to go any bigger, but could have gone for a finer thread.
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    There are only three types of people in this world. Those that can count, and those that can't!

  8. #8
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    As kiwi Greg said, it looks like 9/16-18 , which is a common thread often seen on gun works threaded guns.
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  9. #9
    Member Sako851's Avatar
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    Name:  Thread1.JPG
Views: 196
Size:  86.2 KBName:  Thread2.JPG
Views: 196
Size:  89.9 KB

    Hey again,

    I have attached a couple pics of the read on my Rem 7. Also in .308.

    What do you think?

    His thread looks to go out longer. No pun there typed it as best I could haha.

  10. #10
    Terminator Products Kiwi Greg's Avatar
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    Quote Originally Posted by Sako851 View Post
    Attachment 91775Attachment 91776

    Hey again,

    I have attached a couple pics of the read on my Rem 7. Also in .308.

    What do you think?

    His thread looks to go out longer. No pun there typed it as best I could haha.
    The diameter is whats required

  11. #11
    Member Sako851's Avatar
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    Shall I take the photo facing down the barrel with the ruler measuring like the width?

  12. #12
    Terminator Products Kiwi Greg's Avatar
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    Quote Originally Posted by Sako851 View Post
    Shall I take the photo facing down the barrel with the ruler measuring like the width?
    Yep that would work, Verniers would be better

  13. #13
    Member gadgetman's Avatar
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    Quote Originally Posted by Kiwi Greg View Post
    Yep that would work, Verniers would be better
    Digital callipers or micrometer even better.

    Looks a coarse thread. 7 threads over 9mm gives it a pitch of about 20tpi or 1.25mm.
    There are only three types of people in this world. Those that can count, and those that can't!

  14. #14
    Member Sako851's Avatar
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    Name:  Thread3.JPG
Views: 170
Size:  73.7 KB

    Sorry guys, although I think I did a pretty good job with the photo, I don't have any of those other more accurate means of measurement.
    Does this help?

    Edit: hm it looks quite dark once uploaded, I'll try alter the photo to make it brighter

    Name:  Thread 4.jpg
Views: 167
Size:  398.4 KB

  15. #15
    Terminator Products Kiwi Greg's Avatar
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    Quote Originally Posted by Sako851 View Post
    Attachment 91784

    Sorry guys, although I think I did a pretty good job with the photo, I don't have any of those other more accurate means of measurement.
    Does this help?

    Edit: hm it looks quite dark once uploaded, I'll try alter the photo to make it brighter

    Attachment 91785
    Most likely/is 1/2 x 20

 

 

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