Peters 300 Magnum cartridge (OLD)
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Thread: Peters 300 Magnum cartridge (OLD)



  1. #1
    Marlin Marksman
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    Peters 300 Magnum cartridge (OLD)

    Photos.
    Peters 300 magnum with controlled expansion hollow point, double jacketed bullet. This bullet configuration isn't common today and I'm needing more info on it.
    About when would Peters have loaded this one. It appears to have a corrosive primer which should help dating it.
    The bullet is a hollow point copper jacket with a nickel/steel band all swaged together. Really odd.
    IMG_0442.JPGIMG_0444.JPGIMG_0443.jpgIMG_0447.jpg
    `57
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  2. #2
    Gun Wizard
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    Peters referred to that bullet as belted, it was common 80 years ago, in many cartridges. Peters was "Rustless" or non corrosive when this load was produced. Not sure what the year of introduction was for the 300 H&H belted 225 gr load, but you can dig thru the old catalogs here and find out. Looked at the 1939 catalog and it was present, can track back earlier probably. Before the 300 Win Mag was introduced, the 300 H&H was sometimes marked 300 Mag.

    https://cartridgecollectors.org/cont...alers%20PL.pdf

    For some reason cannot get the general page address to copy over, use the above address cut off, before the 1939.


    Like these old catalogs, as I like to load those old hollow points when I can find them, catalogs describe their intended performance.
    Last edited by graymustang; 10-21-2019 at 07:54 PM.
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  3. #3
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    Thanks graymustang. Good start on this obscure loading.
    `57
    Shoot that Marlin `93, that`s what they were made for.

    Avatar photo; my GGF, b 1830/ d --, Civil War Vet.

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  5. #4
    Gun Wizard
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    Do not see that load listed in the catalogs before 1938, not sure when they stopped loading it.
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  6. #5
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    More info found this morning. PDF file on Peters Cartridges. Page 13 on the belted magnum Listings in their 1939 catalog.
    link,,
    http://cartridgecollectors.org/conte...%20Catalog.pdf

    Thanks for the leads graymustang.
    `57

    `57
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    Shoot that Marlin `93, that`s what they were made for.

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  7. #6
    Gun Wizard
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    Wow, thanks for posting
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    Yesterday I was younger

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    Grandpa had a Mauser converted to 257 Weatherby in the late 1940's/early 1950's. There was no factory ammo for it, and cases had to be formed from 300 H&H cases. Shortened, necked down and blown out.

    I still have his old rifle, his dies, and the converted 300 cases he made.

    Pretty cool stuff.

    Guy
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