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Thread: 12" HMR barrel

  1. #1

    12" HMR barrel

    Taking my HMR to the gunsmith tomorrow after work.
    Getting the barrel cut to 12" to make it nice and compact for 4x4 shooting. From the calculations I've run the trajectory and power etc doesn't massively alter and it's still pretty damn flat out till past 130 yards!

    Anyone else had such a short barrel?

    Cheers

    KS
    Stealthy, like a giraffe on roller-skates....

  2. #2
    SD Regular Greener Jim's Avatar
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    My 12lr is 14" as is my 357 so you've got me beat
    Any Questions Feel Free to PM me

  3. #3
    You'll notice more unburnt propellant in the barrel than usual as you've reduced the effective burn time - on the bright side you'll have a shorter distance to push the squibs out!
    For Gods sake - don't tell her how much I've spent

    Ctrl-Alt FACT

  4. #4
    I'm excited for you mate it should be good.

  5. #5
    I have a factory 14" barrel on my 1517 runs fine you do get unburnt powder in teh mod but no idea if it happens on longer barrels as have never had one

    will get round to running it over a chrono one day

  6. #6
    Do you find it eats your mod quicker or not?

  7. #7
    Quote Originally Posted by luke_manic View Post
    Do you find it eats your mod quicker or not?

    no idea yet only a few 100 rnds thro it its a swift precision Nightingale so can strip and clean gets very wet in there

  8. #8
    SD Regular Greener Jim's Avatar
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    A lot would depend on the internals of the moddy. Not much powder or pressure though so I'd say it MAY be a worry on cheaper mods with aluminium internals but even then I'd be pretty surprised.

    Hopefully soneone who isn't speculating will comment as I don't, and likely won't, own a HMR.
    Any Questions Feel Free to PM me

  9. #9
    Why won't you own a hmr mate?

  10. #10
    SD Regular Greener Jim's Avatar
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    I don't have a need for one, 22lr does what I need. Never say never like
    Any Questions Feel Free to PM me

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