The ram we killed this last season was picked up in 15s while on the move in low light. We got a spotter on him in time to confirm that he was indeed a mature ram. We went after him knowing that he wanted to kill him and 11 hours later thats exactly what happened. It would have really sucked blowing our plan apart and pushing all the way over there wondering if he was a shooter, just to lay in the sun all day waiting for him to feed out, to find out he’s not a shooter.
Bring the spotter.
That's a damn solid bit of advice from someone all of us on this forum thread respect. What I have to add is neither contrary nor argumentative; it's just coming from a slightly different perspective and only applies to a limited number, perhaps none, of the hunters who will give the unlimited units a go in any year. If you are part of a backpacking hunting team consisting of at least two hunters, by all means pack the spotting scope in with you. If you are going at it solo, you might have to take a different approach strictly due to the weight and bulk limitations of your pack.
In the 1980's I opted for Bausch & Lomb 7x50 armored waterproof binoculars that were both bulkier and heavier than newer options available today; but I had significant experience with their extraordinary light gathering ability and their utter reliability in any weather. I would wash the glasses in the kitchen sink after duck hunts in saltwater. (Later on, I bought Fujinon binos with the same specifications but slightly lighter that, save for a lost eyecup, have been just as reliable.)
I had shot rifles mounted with 3-9x 40mm variable power scopes for decades. Wanting to stay with a variable whose lower power would still provide fairly quick target acquisition in my typical deer and elk hunting situations, but provide more magnification for judging distant rams, and stay within my budget landed me on a 6.5-20x 40mm Leupold VariXIII scope. I would have liked a wider power range and larger objective lens*; but the binoculars and rifle scope both served me well.
I never felt handicapped by my decision. I saw rams two of the three years that I hunted--I never even reached the appropriate elevations the first year--and I saw multiple rams that last year when I scored. It was always obvious to me when I was looking at a ram that was generously legal and I wasn't interested in lesser ones**. The biggest difficulty I had was closing the distance on rams that were on the move during rut activity.
*Even though I had pushed for larger objective lenses on rifle scopes every time I got to talk to factory reps, I could not sway those I spoke to in those earlier days. Swarovski built 56mm bells on 30mm tubes at the time, but they were out of the reach of my money.
** In a posting to this thread a couple years ago that I titled "More Than One Way To Miss A Ram" I described how I did intently study a barely legal ram for awhile at relatively close range before it finally dawned on me why I had missed a bigger and obviously legal (even viewed head-on) ram a mere hour or two earlier. There is a "know your gear" lesson embedded in that anecdote, and highly I recommend reading it to anyone acquiring new gear for their first sheep hunt, even if they think they've broken in and familiarized themselves with the new stuff.
Here is a link for new readers of this thread who don't think they want to wade through 106 pages of posts, though I would suggest that they do precisely that if they are serious about pursuing Bighorn sheep in the unlimited units. I don't know whether or not health and circumstances will allow me to return to the high plateaus of the Beartooth country--it is looking more doubtful with each missed season--but I do know that I have gained much more from this forum and thread than I have contributed.
https://www.hunttalk.com/threads/mt-unlimited.265075/page-20#post-2690229
Added note: There are some great photos posted by other HuntTalk members in the pages surrounding my "...Miss A Ram" sob story. Check them out!