I have both sorta. The 6500 has mill dots and the z5 has a Ballistic Turret. I discovered if I set the magnification on 18X in the 6500 my Savage .257 Weatherby (which is sighted in at 300 yards) is on at 420 with the first dot. With the second dot it is on at 550 and at 600 with the third dot.

The z5 is also zeroed at 300. The first twist up is 450 yards. The others have not been set.

"Only Christ is the fullness of God's revelation."
Everyday Hunter