BDC reticles are pretty easy to sort out even if your load doesn't fall within the specified parameters of the reticle.
For instance, with the B&C reticle and my 308 Win/165 bullet load, I zero at 225 yards. First hash mark is on at 300 yards, 2nd at 400, 3rd at 450, top of post at 500 yards.
If a guy can't make a BDC work on game at sane distances he's just not much of a rifleman...
Agreed. I used one on a 7-08 for several years. Had a 140 AB run 2820'at the muzzle, sighted dead on at 215 so the hashes would line up with 300, 400, 450, and 500.