For hunters not used to that OPEN country and for that matter the size of the goats, I found a range finder to be an absolute must. I took 2 animals, first at 413yds and the second at 326yds. Both 1 shot kills both lasered with a range finder. I had my trajectory tables taped to both my rangefinder and my rifle. The other guys in my group did not carry rangefinders and they all missed antelope repeatedly. When I asked them to estimate distances with the naked eye it was amazing how far off they were! They all claimed shots at over 300 yds but the truth is they were having trouble hitting stuff at 200 yds. Oh well, thier problem. I waited and saved too long for this trip to screw it up because of a poor shot.