First step is to understand the rams in the unit/herd you're looking at.
Many herds won't have many, if any, real high scoring B&C rams. Some have a ram every now and then that will score above the minimums. Others, like in a few MT herds, will have 5-6 year old rams that score well over minimums.
Age of the rams is important to me...more so than score and most herds will have older rams available.
As to age, if you can see fairly large spaces between the growth rings at the bases...young ram. If they're stacked and hard to see much space between them, probably looking at 8+ and that's not hard to see in a spotting scope even at a pretty good distance.