Just got done shooting a little today out to 400 yards. The weather conditions were on the humid side since we had rain today in NC. My bullet seemed to be a little low on the target compared to when I got my scope yardage settings. It was clear and sunny that day with a lot lower humidity. Also I am going to NM in December for an elk hunt. I'm guessing the elevation to be around 8000 ft. I am shooting at about 50 feet elevation on the east coast. What should I expect the effect on bullet trajectory in the much higher elevation. I wanted to get custom turrets for my scopes but wasn't sure where to start. I am shooting a Wby MKV using Hornady 200gr ELD-X bullets and also a Wby First Lite using the same bullets. Any help would be appreciated.