dark horned buck

We have seen a couple of these very dark horned bucks running around the ranch over the years.
This one showed up at the feeder Wednesday evening and was joined by a nice buck with the usual light colored horns.
My impression is that these two buck are still pretty young maybe 3 years old or so. What do you think?

Nice

On my place I would think 4.5, but you would know better on your place.

Greatness.