^ LOL!
Well, wind hold can be accomplished by knowing your target dimensions, so I recommend a not-to-busy reticle. I've used mildot, duplex and The Post (Elcan!)
The Elcan is surprisingly nice to shoot, even at 500m.
Really though, I'd say just learn to shoot what ever you've got, and stick with it until it's instinctive. I think the bigger question would be "what magnification?"
I used a Bushnell Tactical 5-15x in the Sept. 07 match to good effect. Understanding the course of fire and what you will need from your equipment will help you decide. I used the higher power of the scope above to compensate for my less-than-stellar eyesight.
Service Rifle is more about you than your equipment.