I love my .243 but don't base your holdover on ballistic charts. They're figured by computation not real shooting. Most will show a .243 in the 18"-22" range (drop at 400) but my findings show it's much more severe than that. It's holds it's own out to about 325 or so then......the wheels fall off. I think 300 is a good max. I killed one this fall ay 230 and the BT did a real good job..the deer just didn't know it. I thought I missed! So I shot again..this time in the shoulder. Dropped in a couple steps. The first shot did great just no oomph! It was obvious that I wasn't shooting my 7 mag. Whack-em!