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Ga-Rand Mystery

Discussion in 'Handloading and Reloading' started by Dave P, Feb 8, 2003.

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  1. Dave P

    Dave P Member

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    So i was shooting a garand match today. Fed cases, CCI prmr, 46.5 gr imr 4895, Nos 168's. Cases have been used 3-4 times; trimmed to length.

    After firing tho, about 1/3 of the cases measure ~.33 neck, vs the norm of ~.34". Can't find anything weird with the cases otherwise. Checked length, weight, dia.

    Why would some not expand to the chamber neck width?

    Tanks
    Dave
     
  2. PaulS

    PaulS Member

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    Dave P.,
    Some of the cases could be hardening more quickly than the others. Have you annealed the cases? Are the necks all the same thickness? I am sure that the other folks here will come up with more than I but these would be the first steps I would make in checking for problems. (Will a bullet slide into the cases with the smaller diameter necks?)

    PaulS
     
  3. Dave P

    Dave P Member

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    Yeah Paul, that was what I was thinking too. Necks getting work hardened - but this seems extreme.

    No, I have not annealed them; might do that, or just trash em.

    And no, the bullets do not slip back into the fired cases (the smaller ones).

    Thanks
     
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