tmj ammo

kissgoodnight

April 06, 2016 08:25

I do not know what tmj means. Could someone enlighten me on this.
thanks
kgn

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  rufe-snow

  April 06, 2016 09:10

  Total Metal Jacketed. It's actually copper that is plated on the lead projectile.
  
  Some companies use a thicker layer of plating than others. More able to sustain, being fired at higher velocities.

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