Originally Posted By: jasonprox700I'm running a G2 AP4 with the chrome lined 16" barrel. I'm not impressed with the accuracy vs my old Gen 1 AP4, but it'll still put 165gr Partitions into 2" at 100 yards. I'll be replacing the barrel with a Shilen from Rainier Arms or something similar in the future to squeeze all the accuracy I can out of this gun, but for now, it's minute of deer and will kill anything I put the crosshairs on inside of 300 yards with the accuracy I'm getting now.
I'd try different ammo for sure. I reload, and I've had bullets that I never could get to shoot out of a rifle. I'd try the "same" bullet from a different manufacture and it'd shoot lights out! Every barrel is different, and no two guns shoot the same. The next G2 Hunter down the line might love those American Whitetail 165's. It's a crap shoot.
Chrome lined barrels were designed and intended to extend the barrel life for rapid and sustained fire situations. However, the chrome lining tends to sacrifice accuracy over longevity.
That is your best bet, replace the barrel with a high quality barrel and never look back.