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Recent content by Jeff361

  1. J

    Ar-10 in 6.5CR Feeding Problem-Need Help

    I finally got my rifle back from JP in February. They machined a small feed ramp into my upper and polished the underside of the BCG. I have now begun to load test. This rifle does not like longer bullets. 130 Berger’s and 123 Scenars feed perfectly as long as they are seated below 2.80...
  2. J

    Ar-10 in 6.5CR Feeding Problem-Need Help

    Dave Cammack at JP still has my rifle, mags and ammo. I should have feedback after the holidays.
  3. J

    Ar-10 in 6.5CR Feeding Problem-Need Help

    Rifle just arrived at JP today..... I sent them ammo... I am sure that with their expertise they will diagnose the issue and come up with a solution. I own a lot of JP products and can attest that they are top quality. Lets see what they discover. Stay tuned.
  4. J

    Ar-10 in 6.5CR Feeding Problem-Need Help

    Here is the photo of the 2 BCG... JP on the left and DPMS on the right
  5. J

    Ar-10 in 6.5CR Feeding Problem-Need Help

    Rifle was shipped off to Gibbz Arms for testing. They ran Sellior&Bellot and Winchester ammo through with zero issues from all of my magazines. I then sent them Hornady American Gunner and some of my handloads ( Hornady Brass with Berger 130 OTM loaded to magazine length) and they experienced...
  6. J

    Ar-10 in 6.5CR Feeding Problem-Need Help

    Thanks for the feedback.... I have been testing my rifle with factory ammo..... . Had the upper/barrel extension blended and polished by my gunsmith.... tested... and still having the same issue. Also adjusted gas per JP instructions and determined that it is not a gas issue. It appears to...
  7. J

    Ar-10 in 6.5CR Feeding Problem-Need Help

    Thanks.... I'll let you know.
  8. J

    Ar-10 in 6.5CR Feeding Problem-Need Help

    TampaBud.... thanks for the info. I just picked up a few ASC steel magazines... they look similar to the CP mags. I have not tested them yet... but they fit tighter in my magwell and also appear to present the bullet at a better angle than the PMAGS and Lancers that are giving me issues. I...
  9. J

    Ar-10 in 6.5CR Feeding Problem-Need Help

    Thanks for all of the feedback...... I will take some higher res photos with some better lighting. Will also pick up some steel mags and try those to see if they work. Maybe just a little filing and polishing of the junction between the upper and the feed ramps will fix the issue.
  10. J

    Ar-10 in 6.5CR Feeding Problem-Need Help

    Guys... thanks for the replies. The rifle has not functioned correctly from the beginning. I had a few other compatibility issue that have been solved...IE... DiamondHead handgaurd ID to small for JP Heavy Contour barrel, gas block issues etc. I am using the proprietary CAM pin.... I have...
  11. J

    Ar-10 in 6.5CR Feeding Problem-Need Help

    I have built a DPMS patern side charging AR-10 in 6.5 creedmoor with top quality parts and cannot get it to function correctly.... reaching out to the forum for advice. The build is on a matched Gibbz G10 side charging upper/lower receiver. Operating system and barrel are all JP Enterprises...
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