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Ruger MK III feed issue and ?'s

Discussion in 'Rimfire Forum' started by BigJoe13, May 8, 2010.

  1. BigJoe13


    Feb 7, 2010
    NE Arizona
    Dida search for this and found nothing, so here is the problem.

    Have a Ruger MK III 4" barrel. I have 4 mags total that seem to work ok. It has about 4-5 hundred rounds through the pistol and I have had it for 1.5 years or so. Every time I use a bulk box of HP .22LR it jams on the feed ramp, cuts the nose of the bullet and fails to feed. This is in the neborhood of 1 in 5 or 1 in 8shots between jams. If I switch to a brick of Round Nose .22 LR I have had for 15 years or so it works 100 percent. I have let 2-3 friends shoot it and tell me they think the sights are off, then proceed to prove them wrong with 5-6 shots in a one inch group.

    I have field stripped it twice for cleaning, all parts are stock.

    Should I just call Ruger reguarding the issue?
    Any ideas reguarding a fix?

    Thank you in advance for any help.
  2. Lotiki

    Lotiki All that is man

    Feb 13, 2007
    Aurora, Co
    Adjust the feed lips of your mags to bring the nose of the bullet up a tiny bit by spreading out the front part in very tine increments.

  3. BigJoe13


    Feb 7, 2010
    NE Arizona
    Will do!