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Case volume difference???

sealyonsealyon Member Posts: 313 ✭✭✭
edited May 2003 in Ask the Experts
Since I don't have the cases here to measure, could one of our experts please give me the case volumes of the 300 Win. Mag, 300 Wthb. Mag, and the 300 Win Short Mag. Thanks in advance......................
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    JustCJustC Member Posts: 16,056 ✭✭✭
    edited November -1
    Volumes vary by manufacturer.

    why chase the game when the bullet can get em from here?....
    Got Balistics?
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    gunnut505gunnut505 Member Posts: 10,290 ✭
    edited November -1
    Pore through the back issues of Hunting, Guns & Ammo, etc. for the articles on those calibers; they will mention case capacities and compare them to each other in almost every one. Or look at the SAAMI website for the spec drawings-you can figure case volumes with GEOMETRY. Don't have any use for arcane info like that personally; I just shoot them & go with the biggest blast!

    If you know it all; you must have been listening.WEAR EAR PROTECTION!
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    rocktonrockton Member Posts: 551 ✭✭✭
    edited November -1
    Buy some cases and measure them.
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    RossRoss Member Posts: 156 ✭✭✭
    edited November -1
    While this does not answer your question, Ken Howell's great book _Designing and Forming Custom Cartridges_ has been reprinted and is one of the best sources for the experimenter. He lists the volume of twenty .300 cartridges. His volumes, though are the case exterior volume rather than the case capacity. The case weights are listed and the capacity can be derived.
    The .300 Win Mag displaces 116 grains of water.
    The .300 H&H 122gr. H?O.
    The .300 Weatherby 133 gr. H?O.
    The .300 Kong 175 gr. H?O.
    The short mag is more recent than the book, and is not listed.
    (Sorry, I haven't learned how to type the subscript 2.)
    Perhaps this will give a hint of the relative differences of the cartridges's capacities.
    Cheers from Grayest California,
    Ross
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    Tailgunner1954Tailgunner1954 Member Posts: 7,734 ✭✭
    edited November -1
    Nominal water capacities, to base of neck
    30-06..............61.0gr
    30Gibbs............66.4gr
    300Rem SAUM...67.6gr
    300H&H...........74.3gr
    300Wim SM......74.8gr
    308Norma Mag..75.0gr
    30-338Win Mag.76.0gr
    300Win Mag......82.1gr
    300Wby...........86.0gr approx
    300Rem UM.....104.4gr
    30-338Lapua Mag 108.3gr
    30-378Wby.....114.0gr approx
    300Pegasus....124.1gr
    30-416Rigby Imp...126.1gr
    Some guys like a mag full of lead, I still prefer one round to the head.
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    sealyonsealyon Member Posts: 313 ✭✭✭
    edited November -1
    Ross & Tailgunner... Thanks. That was what I was looking for. Appreciate the info...........

    God put stupid people on earth just to test me
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