Not an expert by any means but I think he is a little north of what was previously guessed. I would assume somewhere in the high 140s to low 150s. Hard to say given the side view.
I shot a 4x3 a couple years back with what I would assume is comparable width, wayyy weaker forks, better height and better mass that went 140. I think this one has a few extra inches stashed in there.
Got a 5x4 last year that was pretty comparable all around that went 151.
I tell you what, I wouldn't hesitate to pull the trigger. But to clarify that statement my tag is currently hanging on a blacktail spike horn. I rarely hesitate.
Shoot him next year and let's find out!