At 200 yards, a 15 MPH wind will be a significant factor. The problem is that accuracy = consistency. Wind, of course, is never blowing at a constant rate, so therein lies the problem.
But since it’s down to crunch time, you really don’t have a choice, so here’s what I’d do.
– Shoot early if you can. Get out there as soon as possible to take advantage of any morning calm.
– Bring plenty of ammo. You want to be shooting 5 shot groups OR MORE because only by firing a number of shots will you be able to determine what is/is not a wind-induced issue and then adjust accordingly.
– I’d prefer to shoot straight up or down wind, but that’s not easy to arrange because wind direction varies 20 degrees or more. IMO, the key is to know the direction of the wind while you’re shooting so you don’t overcompensate and add too much windage into your adjustments.
– Finally, if at all possible, I’d try to arrange a session in CO when you arrive to check your zero once you get there. You might have to just go onto some public land and find a good spot, so go prepared with extra ammo, targets, and some kind of rest for your rifle. Again, make sure you have plenty of ammo just in case you find you need to make a significant adjustment.
Good luck.
Grouse