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Thread: 375 H&H magazine conversation possibility

  1. #1

    375 H&H magazine conversation possibility

    Hi All
    i have a cz550 in 375 could it be possible to convert the rifle to a magazine instead of the original floor plate? Also, who would undertake this type of work?
    thanks in advance

  2. #2
    SD Regular Greener Jim's Avatar
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    I don't know of anyone doing bottom metal which ch would allow that in a magnum length action I am afraid.

    It could be done as a custom thing but the price may be a little high. You would obviously also need a mag from another rifle to use or have a custom one made up.
    Any Questions Feel Free to PM me

  3. #3
    Quote Originally Posted by Greener Jim View Post
    I don't know of anyone doing bottom metal which ch would allow that in a magnum length action I am afraid.

    It could be done as a custom thing but the price may be a little high. You would obviously also need a mag from another rifle to use or have a custom one made up.
    It probably could be done but keeping the mag in the rifle 100% of the time might be hard unless you have a monster magazine release latch. There is a reason they pinned the floorplate on the big magnums. ~Muir

  4. #4

  5. #5
    SD Regular Greener Jim's Avatar
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    I was aware of that one MTLEADFARMER, unfortunately it isn't designed for the correct action length. The OP has a 375 h&h and the PTG bottom metal is for 30-06 length actions.
    Any Questions Feel Free to PM me

  6. #6
    Click on the link again , then click choose magazine .

  7. #7
    SD Regular Greener Jim's Avatar
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    They're all 30-06 length except the 338 lapua which is significantly wider, isn't belted, and is if a different shape. I honestly don't know if it'd work
    Any Questions Feel Free to PM me

  8. #8
    The reason big game rifles have fixed magazines is reliability. The last thing you want is for floorplate to drop open, or mag to drop out when you have annoyed something that will eat or stomp on you. Those CZ / Brnos carry five in the magazine. Original Mausers only feed from the magazine, so additional rounds have to be pushed down. I believe you can bevel the extractor claw so that it will pop over the rim of round loose fed.

    J Roberts and Sons build a lot of big game rifles and have used the Brno action extensively. They would be worth a chat. You can certainly get a deep floor plate that allows to hold an extra round in the magazine.

    heres a 416 built on the CZ

    http://www.jroberts-gunmakers.co.uk/...ail.php?id=192

    also worth asking the same question on accurate reloading. Lots of gunsmiths in the US contribute.
    Last edited by Heym SR20; 16-11-2016 at 11:39.

  9. #9
    Quote Originally Posted by Greener Jim View Post
    They're all 30-06 length except the 338 lapua which is significantly wider, isn't belted, and is if a different shape. I honestly don't know if it'd work

    I am building a custom stock for my 300Win Mag with a 338 Mag to accomodate my longer 208gr loads which are 338 OAL

    Belted case will run just fine on a single stack magazine
    there is not discernible difference in magazine lip and all I have done is make sure the rear edge is profiled to allow a smoother entry for the belt.

    the case width isnt and issue, 13mm vs 14.9mm
    the case is centred in the feed lips anyway
    if you were worried about slop inside the mag box some sub 1mm tape or shim stuck inside would take that up

  10. #10
    On a DGR rile, I would rather have a blind magazine than a detachable magazine.

    I had a CZ 550 Safari Magnum, which was hinged at the trigger guard and dropped the cartridges by sliding then forward into your hand - a very nice thing, especially 5 large cartridges, which are a handful.

    The manual for the newer CZ 550 Medium Magnum shows it available with a detachable drop magazine, same as for the .243 and .308. So I would contact the CZ dealer.

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