Recent content by Northriver

  1. Northriver

    Cooper 280ai reload issues

    Thanks for all the advice guys. Never found any 26 so settled with 23. Loading 55.8gr w 150 ELDX was the winning ticket. Low ES and great groups. Gonna start stretching it past 200 yards now and see what she will do.
  2. Northriver

    Cooper 280ai reload issues

    Thanks for all the input guys. The barrel is 9 twist. As recommended, I have changed primers and bullets. I am seeing better results with 150 eld's and have shot these with both 4831SC and RL 22. ES is now coming down to single digit which is what I was after. Going to continue to play with...
  3. Northriver

    First custom rifle

    Take a look at TS Customs. I bought a 6.5 PRC that he built and it is the absolute best rifle I’ve ever owned or shot. Will be buying another custom from him for sure.
  4. Northriver

    Cooper 280ai reload issues

    Everything was loaded from new Nosler brass
  5. Northriver

    Cooper 280ai reload issues

    Barrelnut- to be honest I’m not sure
  6. Northriver

    Cooper 280ai reload issues

    CCI no. 250
  7. Northriver

    Cooper 280ai reload issues

    Purchased Cooper 52 Excalibur in 280 ai and am struggling to find the right reload for it. Here’s what I’ve done thus far: 4831sc with 162 Eldx, charges from 56.5 to 59.5. Adjusted seating depths and can get decent groups but not sub Moa as it is supposed to shoot. Accuracy just not there and ES...
  8. Northriver

    Hello from South Carolina

    I have read hundreds of threads in preparation for a recent DIY 2nd season rifle hunt in Colorado. It was because of this that the trip was amazing. Hence, I decided to finally join and become a member of such a great forum. Tony
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