Good Job Ringo!!
I knew you could do it.
Buy as much of that ammo as you can, (preferably/hopefully the same lot #).
Test your scope adjustments for tracking accuracy, and you're well on your way.
Glad to see you finally got EJ's 390 yd prarie dog posted up
I bet if he uses your rifle we can get him into the 500 yd club next time you're out.