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Garand trivia question...

Discussion in 'GSSF' started by Gary7, Feb 25, 2010.

  1. Gary7

    Gary7

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    True or False? The 7mm-08 is virtually identical to the cartridge that the M1 Garand was originally designed to shoot.
     
  2. AZ Jeff

    AZ Jeff

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    NOT TRUE.

    .276 Pedersen-----140 gr bullet at MV of 2400 fps
    7mm-08-------140 gr bullet at MV of 2800 fps
     

  3. Gary7

    Gary7

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    I said cartridge, not ballistics. :whistling:
     
  4. faawrenchbndr

    faawrenchbndr CLM

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    Uh,.....:dunno:
     
  5. Andrewsky

    Andrewsky

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    Exactly.
     
  6. Gary7

    Gary7

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    276 Pedersen
    Case type: Rimless, Bottleneck
    Bullet diameter: 0.2842 in (7.22 mm)
    Neck diameter: 0.313 in (8.0 mm)
    Shoulder diameter: 0.385 in (9.8 mm)
    Base diameter: 0.450 in (11.4 mm)
    Rim diameter: 0.450 in (11.4 mm)
    Case length: 2.023 in (51.4 mm)
    Overall length: 2.855 in (72.5 mm)
    Primer type: Large rifle

    7mm-08
    Case type: Rimless, Bottleneck
    Bullet diameter: 0.284 in (7.2 mm)
    Neck diameter: 0.315 in (8.0 mm)
    Shoulder diameter: 0.454 in (11.5 mm)
    Base diameter: 0.470 in (11.9 mm)
    Rim diameter: 0.473 in (12.0 mm)
    Rim thickness: 0.050 in (1.3 mm)
    Case length: 2.035 in (51.7 mm)
    Overall length: 2.80 in (71 mm)
    Primer type: Large Rifle
     
  7. harleyfx69

    harleyfx69

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    hmm ..

    they are somewhat close ..

    but to answer your question,

    no
     
  8. Tank44

    Tank44 Tank44

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    They are close but not the same. In fact during WW2 the Germans would sometimes shoot the American M1 Garand 30.06 rounds that they would capture out of the 8mm Mausers. Although not a practice I would endorse.
     
  9. GIockGuy24

    GIockGuy24 Bring M&M's

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    The 7mm-08 is very similar to a cartridge developed by the British after the war. One of the first FAL contracts was in 7x49mm to Venezuela in 1954.

     
    Last edited: Feb 26, 2010
  10. Gary7

    Gary7

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    I never said the 276 Pedersen and the 7mm-08 were the same. But when you look at the critical dimensions and there are only tenths of a millimeter differences, the cartridges are "virtually identical"--certainly closer than the 30-06 and the 8x57. The main difference is in the shoulder and the tapered body of the 276.
     
  11. AZ Jeff

    AZ Jeff

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    So what was your point? They are dimensionally not the same, nor are they ballistically the same. "Close" is a relative term.
     
  12. RonS

    RonS Millennium Member

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    If you can't fire one in a rifle chambered for the other, I don't consider them "virtually identical". Heck, you can start a flame war by saying that 7.62x51 is "virtually identical" to .308 Winchester! Since the weapon in question is the M1 Garand, and there are a ton of people who warn against shooting commercial .30-06 in Garands because of the difference in pressure curve and battering of the operating rod, they aren't nearly close enough.
     
  13. sigcalcatrant

    sigcalcatrant

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    You be the judge:

    .276 Pederson

    Case type Rimless, bottleneck
    Bullet diameter .2842 in (7.22 mm)
    Neck diameter .313 in (8.0 mm)
    Shoulder diameter .385 in (9.8 mm)
    Base diameter .450 in (11.4 mm)
    Rim diameter .450 in (11.4 mm)
    Case length 2.023 in (51.4 mm)
    Overall length 2.855 in (72.5 mm)
    Primer type Large rifle


    7mm-08

    Parent case .308 Winchester
    Case type Rimless, Bottleneck
    Bullet diameter 0.284 in (7.2 mm)
    Neck diameter 0.315 in (8.0 mm)
    Shoulder diameter 0.454 in (11.5 mm)
    Base diameter 0.470 in (11.9 mm)
    Rim diameter 0.473 in (12.0 mm)
    Rim thickness 0.050 in (1.3 mm)
    Case length 2.035 in (51.7 mm)
    Overall length 2.80 in (71 mm)
    Primer type Large Rifle

    Pretty close.
     
    Last edited: Feb 27, 2010