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pressure issues

  1. Flappy

    6.5 Grendel Ammo Issues/Pressure Issues

    Hey all, A few years back I bought a 16 inch 6.5 Grendel upper. Ended up not really shooting it much because of ammo and other stuff, and decided I would take it out and shoot it to make some brass this weekend, now that I have a press and dies and chrono etc. So I set up my target and...
    • Flappy
    • Thread
    • 6 5 grendel 6.5 grendel problem accuracy ammo ar15 brass grendel pressure pressure issues velocity
    • Replies: 17
    • Forum: Semi-Automatic Rifles
  2. J

    Extractor marks normal?

    This is a 5.56 factory load: frontier 75gr bthp. Does this mark on the brass casing mean that it's having pressure issues? The mark on the right case isn't as bad. I planned on starting to reload for this rifle but if its having weird pressure issues with factory ammo I'll get a new barrel. I...
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