Took my first antelope in Wyoming with my Nosler handgun, 6.5 Creedmoor. All four of us took good bucks, but I was the only one handgun hunting, took him at 260 yds. DRT. It was a great experience.
Let me put it to you this way.
That is nicer than anything I ever shot!!!
Last time I was in Wyoming, and we were both tagged out.
Huntahoulic drove me over and showed me a buck like yours at dusk next to the main road.