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superperformance powder

  1. Superperformance powder (hodgdons)

    Handloading Procedures/Practices
    I wanted to ask around if anyone has been reloading with this powder. I have an old Ruger 7mm. magnum (1976) and have never had much sucess reloading for it having never shot a group yet under an inch and 1/2 until I broke down and finally bought a box of Hornady Superperformance with the 139g...