American Made 9x19mm Ammo Different From Foreign Made?

Discussion in 'Ammunition & Reloading' started by Trez, Nov 7, 2011.

  1. Trez

    Trez Well-Known Member

    Ive noticed the American made 9x19mm (Parabellum, Luger) has a slight taper at the base of the case. Ive had trouble getting them to fit in my Medusa.. A couple of days ago I got some loose Seller & Bellot 9mm Luger from a friend and they fit beautifully... Looking at the cases I noticed the the Seller & Bellot doesnt have the taper at the base and is more of a straight-walled case...

    Why is this? Why do the American 9mm's taper and foreign ones do not? Does it not really matter? (except in my Medusa) :confused:
    Would the Lee Factory Crimp die get rid of this taper? Can the crimp part be removed so I could resize loaded ammo, or use it on 9x23 (I have a box but it has the same taper as 9x19, and doesnt fit the Medusa)