Oryx are widespread on the White Sand Missile Range in NM. Unfortunately, the number of tags is very limited, and they are "once in a lifetime" tags in an area with no scouting (I did mention it's on a top secret military base), so you better be prepared to pay a decent guide to make sure you get a shot off. So far I' 0 for forever on the draw.
I used to love being able to hit hard at 1000 yards. As I get older I find hitting a mini ram at 200 yards with the 22 oddly more satisfying.