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30 Belted Newton

blunder
Ok I can find quite a bit of info on the .256 Newton, but I can't find a thing on the 30 Belted.
I have a 30 Belted Newton built on a 1946 (transission) Mod 70.
As far as I can conclude, my dad baught this gun in 1947.
Where can I find information about this cartrige/gun?

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Comments

9 comments

Date Votes
  • Tailgunner1954
    I have some information on the rimless 30 Newton, but not a Belted version of it.
    Sounds like you need a chamber cast made, than set of dies. Load data can be calculated by Quickload or Accuload software. Brass can probably be made from 300 & 375 H&H brass as they were the parent cases to almost all of the Belted cartridges.

    Whittemore
    Some guys like a mag full of lead, I still prefer one round to the head.
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  • blunder
    I have the old set of dies for it (wouldn't want to use them though), and its my understanding that they are still available. My dad was using .308 Norma Mag casings, and also .338 Win Mag casings. His old books are so well used that I can't make heads or tails out of his load data though.
    I would realy like to trace back to where the work on this gun was done. If at all possable. I can't find enough information on his belted cartriges to even have a place to begin.

    tom
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  • ibffsteve
    Doing a little research on some other message boards,I came acroos some other info
    30 belted Newton is also known as 30-338 and 300 Ackly Magnum
    http://www.reloadbench.com/ubb/Forum1/HTML/002768.html

    If this is the cartridge you have then here is some loading data I found
    http://stevespages.com/308_3.html
    Also if this is your cartridge Sierra loading manual has the load data




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  • Iconoclast
    This is a wildcat round and any association with the Newton firearms company is tenuous at best. Newton actually did experiment with a powerful .30 rimmed cartridge called the .30 Newton Express . . . the only known legitimate specimens came from his estate and were based on .40-90-3.25" Winchester brass (headstamp is `W.R.A.Co. 40-90 S.S.').

    "There is nothing lower than the human race - except the french." (Mark Twain) ". . . And liberals / demoMAGGOTS" (me)
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  • blunder
    Well I know that the 30-338 and the Ackley are a different length. Someone told me that the 30-338 will "fire-form" but is not an exact match.
    The information in the thread you gave me would indicate that the 30-338 was developed in the 1950s. The 30 Belted Newton is much older than that. I believe the Buffalo Newton plant shut down in 1932, and this gun was done in 1946.

    tom
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  • blunder
    Bump

    Isn't there any gun hisory buffs on here that would have a sourse of information on the old wildcat cartriges??

    tom
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  • Tailgunner1954
    You've got the rifle, unless the dies are full of rust pits use them, and you know what you can make brass out of. All you need now is modern reloading data, invest in a copy of Accuload or Quickload, start low and work up slow.
    Wildcats and Wildcatters are a different breed of reloader. Once you get away from the "common" cats like the AI series, your on your own. Example of how "wild" they can get, I have a sample of a belted wildcat called the 700HE that is formed from the 50BMG case in my collection, and the same guy is developing a 4 bore baised on the 20mm Vulcan round.

    Whittemore
    Some guys like a mag full of lead, I still prefer one round to the head.
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  • MIKE WISKEY
    I used to have a 'standard' .30 newton. brass was made by neckin up 7 mm mag cases and fire forming. the body fireformed flush with the outside of the belt (the belt was not used for headspace). this MAY be what you have, if in doubt have a chamber case made.
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  • Ross
    A few years ago I picked up a .30 Newton RCBS die set at a gun show, but didn't notice the "B". Both the .300 Win Mag and the .308 Norma mag are a little longer than the 2.52" regular Newton case and would make fine donor brass if your base diameter is not too large. The Newton has a nominal base diameter of 0.5295" and the H&H base is slightly smaller, but not enough that 'smiths were put off in rechambering for the available cases, but your M70 is likely chambered correctly for the case.
    Cheers from Darkest California,
    Ross
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