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.40 s&w ammo

  1. General Gun Discussion
    I recently bought a new cz 75b .40. Within 100 rounds of Winchester ammo I had 4 jams.. I then fired 120 rounds of some TMJ Serbian ammo... Can't remember the name of it, but I had no jams. I noticed that the rims where slightly different, but barely... With the Serbian ammo the aft edge of the...