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pressure

  1. Significance of psi

    Reloading
    i just started reloading and am noticing a vast array of pressures in the reloading charts. Is there an advantage to higher or lower pressures? At first I thought the higher pressures would help cycle a gas semi auto. But I contacted Hodgdon and the tech told me that pressure didn't effect...
  2. Powder burn rate and Semi Auto

    Reloading
    I have just started reloading and have a question about powder bur rate. I'm loading 12 ga 7/8 oz shells at 1200 fps and I want the least felt recoil. If my research is correct the slower burn powders give the perception of less recoil, because it spreads the actual recoil over a longer time...
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