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Thread: Chopping HMR Barrel

  1. #1
    Member tiroatedson's Avatar
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    Chopping HMR Barrel

    Gidday

    Has any learned person on here chopped a 17 HMR barrel? Looking at taking about 4-5 inches off and re-threading for suppressor. It already wears one. It's just a bit long for getting in and out of vehicles while spotlighting. Is there much of a loss of velocity and what could the barrel be shorten to without adversely affecting velocity.

    Thanks all. Hot barrels everone


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  2. #2
    Member Mathias's Avatar
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    If you google it, you will find a couple of tests performed on chopping verse velocity. Essentially 18" is optimum for the 17HMR.

  3. #3
    Member gadgetman's Avatar
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    tiroatedson and Maca49 like this.
    There are only three types of people in this world. Those that can count, and those that can't!

  4. #4
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    Nibblet likes this.
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  5. #5
    Member tiroatedson's Avatar
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    Thanks gadget


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  6. #6
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    My Weihrauch is fairly short, cannot remember length off the top of my head, but still gets out with excellent accuracy to 180. Has a Mae over barrel
    Boom, cough,cough,cough

  7. #7
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    Nibblet, res and Mathias like this.
    Boom, cough,cough,cough

  8. #8
    Member tiroatedson's Avatar
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    Now that I've got some info just after some real world opinions by people who use them. Looks the shizz there Maca49.


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  9. #9
    Bus driver
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    STREWTH mate.... I have the 5 shot mag bolt action and the 10 shot semi auto HMR 17,s..... not sure I could do that to any of them.... the stats I’ve seen say the barrels are at optimum length .i will admit with out a suppressor it has a nasty crack to it,.... good earplugs are my suppressor....... be interested to see the results if you do the cut
    It's not the mountain we conquer,but ourselves.....Sir Edmund Hillary

  10. #10
    Bus driver
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    Well maca49..... that’s some interesting stuff...the results from 10in 22 in are surprising.... would never have guessed that the performance was not adversely affected
    Last edited by A330driver; 05-10-2017 at 03:17 PM.
    It's not the mountain we conquer,but ourselves.....Sir Edmund Hillary

  11. #11
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    Quote Originally Posted by A330driver View Post
    Well maca49..... that’s some interesting stuff...the results from 10in 22 in are surprising.... would never have guessed that the performance was not adversely affected
    Longest ranged shot with this rig 184metres, flat paddock with a GRASSY knoll, knocked over 4 rabbits, one after the other, weather conditions were perfect, I love this rifle and its the fourth Ive owned.
    Weighs 4 tonne with the Night force
    sneeze, A330driver and Mathias like this.
    Boom, cough,cough,cough

  12. #12
    Bus driver
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    Ammo used...???........I use Hornady V-max 17 gr,polymer tipped stuff.....little spendy,but well worth it...
    I reckon it makes sense to shorten the barrel to “specialize” the gun for what you need,no argument there.Took the time to google various articles about shortening the HMR 17 barrels,seems this rifle holds up well,and it’s ballistics,to a certain degree.In Kiwi,I can see where this would come in very handy.Reckon you learn something everyday....

    Quote Originally Posted by Maca49 View Post
    Longest ranged shot with this rig 184metres, flat paddock with a GRASSY knoll, knocked over 4 rabbits, one
    after the other, weather conditions were perfect, I love this rifle and its the fourth Ive owned.
    Weighs 4 tonne with the Night force
    Last edited by A330driver; 05-10-2017 at 05:35 PM.
    It's not the mountain we conquer,but ourselves.....Sir Edmund Hillary

  13. #13
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    Looking forward to having a crack with this. 390mm ish
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    Maca49, res, 300CALMAN and 1 others like this.

  14. #14
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    Quote Originally Posted by A330driver View Post
    Ammo used...???........I use Hornady V-max 17 gr,polymer tipped stuff.....little spendy,but well worth it...
    I reckon it makes sense to shorten the barrel to “specialize” the gun for what you need,no argument there.Took the time to google various articles about shortening the HMR 17 barrels,seems this rifle holds up well,and it’s ballistics,to a certain degree.In Kiwi,I can see where this would come in very handy.Reckon you learn something everyday....
    Only use Hornady 17 grain VMax
    Boom, cough,cough,cough

  15. #15
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    Quote Originally Posted by Maca49 View Post
    rich guy. nightforce on the HMR nice. very sexy

 

 

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