I have used mil-dot scopes holding for wind, with my elevation turret(in MOA) for drops. It works, but I much prefer everything in MOA. Some second focal plane mil-dot scopes you can set your power so the mil-dots are at 2moa but, in your price range you should get everything in MOA.
I've got the Vortex PST 4-16. It would do all you want. You could get one in 4-16 or 6-24. You could also get this in front focal plane.
I also have a Sightron SIII 6-24X50moa. I feel it is a step up from the PST, but it doesn't come in 4-16 or ffp.
Check out Huskemaw
. I don't have one, but they seem to be proving themselves as very useful hunting scopes. They are made specifically for long range hunting. They make a 3-12x44 and a 5-20x50. They can be set up to dial in yardage and hold for wind. They incorporate a 10mph cross wind with the yardage on the elevation turret. This gives you a value in reticle hash marks to hold for a 10mph wind. I think this would be your best bet, for what you want the scope for.