Gen 5 34 with Delta Point Pro ammo issue

Discussion in 'Gunsmithing' started by t-shooter, Aug 10, 2020.

  1. t-shooter

    t-shooter

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    Since I mounted the Delta Point the 34 has become ammunition sensitive. Specifically, it will not function reliably with lightly loaded 115 grain ammo like Federal or Blazer Brass. On average once per full magazine, a round will fail to extract or will short cycle and not pickup the next round in the magazine. It runs 100% with hotter Speer Lawman and with Blazer Brass 147 grain. Has anyone else experienced this and can recommend a fix?
     
  2. cciman

    cciman MacGyver

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    You added mass to the slide.
    Firm your grip, and/or try using a lighter recoil spring assembly, or just be happy and use hotter loads.
     

  3. jerseyglock

    jerseyglock

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    Run hotter factory ammo or send your slide out for weight reduction.