I use federal, and has it has never let me down, I was practicing this last week , shooting down approximately at 85 yards at line of sight.
I was hitting the 6-7 inches approximately over the center. I zero at 25 yards, and according to ballistics for federal ammo ballistic tip 80 gr 243 at 25 is zero, 100 is 2 inches high, and at 300 zero. so more testing at that. my d16 is shot for this year, but starting to get ready for next year. and going up north with neighbor, I will set at 300 and see what it does, my biggest problem is keeping steady. even with shooting sticks. I need to make a steady rest with my sticks. oh I miscalculated the above post should be cosine x the length = actual length horizontal.