25 Gibbs Rifle cartridge

Discussion in 'Utah Flyway Forum' started by krypto, Jan 10, 2022.

  1. krypto

    krypto Senior Refuge Member

    Feb 6, 2001
    Collinsville, IL, USA
    I have a Winchester model 70 rifle chambered for a 25 Gibbs rifle cartridge. It is a 30-06 shell case necked down to 25 caliber and fire formed to form the shoulder angle. The only information I have about this gun is that the cartridge was designed by a person in Utah possibly in the 1950s. Does anyone have any loading information about this cartridge?

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