Thank you all again for the tips. I do have a Leica rangefinder that has been used over the years on whitetails here in KS and trips to CO and NM. I will definitely plan to take it along.
I called Leupold today and will do the CDS turrets on the .308. A family friend who I spent the day with yesterday has a range to shoot 400 yards+. His wife is a 1,000 record holder in her bench class and he is a reloading guru. He is pumped about helping me, as he gets to "go along" on the hunt in a way. He will help me train when it comes to shooting and developing a good sheep load. Talk about a good friend to have!
We are going to load some 150 grain Barnes TSX and see how they shoot. We also have some other bullets that we may try but will start here.
As a young guy who just turned 30, it's amazing the knowledge-sharing that guys are willing to give you if you respect their knowledge and are willing to shut-up, listen, and be appreciative. I feel as though my generation lacks this a times.
Thank you again and keep the tips coming.
