Leupold builds a custom dial for 63 bucks. You give them
bullet weight, caliber, make/model, BC if you have it, they usually do if you don't.
Avg temp, altitude
Your zero yardage
And most importantly! A good muzzle velocity.
They send you a dial to replace yours that allows you to dial the yardage, not count clicks.
When I shoot 700 yards, I turn the dial till it says 7 and your dead on. They are awesome for the money.
If you shoot multiple reticules, like BC or VH pick the furtherst out that you are comfortable with. I like the 400 yard marker, and tell them your gun is zeroed at 400. Then the dial starts at 400. Gives you more room for adjustment. My 270 can dial to 1000 because I start the dial at 400. I shoot the reticules from 400 in, and shoot the 400 yard reticule and dial for everything past 400. I've got the big target torrents so it buys you more turns for yardage because they can print 3 full turns that gets me to 1000. if your torrents are shorter, they can't print unique numbers on them as far out. That's another reason to start your zero with the later reticules.
I've even got one on order for my competition 22!
I've got them for my 308, 270, 223 and 2506. They are AWESOME for 63 bucks!