compared

  1. 300WSM

    why is 38spl so slow compared to 357 mag and 9mm?

    ok so couple of questions... first why is 38spl +p so slow compared to 357mag. Case size seems to be about the same. 2nd why aren't 38spl faster then 9mm? 9mm is a much smaller case yet is faster? Sorry for the newbie question. http://tinypic.com/r/2enqjv7/5 9mm 115gr 1250fps, 38spl+p...