That was a fine piece of shooting. But, he got lucky. Shooting deer and antelope with a handgun with iron sights should really be held to distances under 75 yards. It's just too easy to miss your mark and wound an animal beyond that and not be able to track it down and follow up. For those longer distances ............. use a scope!
I'm not sure it's fair to say he got lucky. He called his shoot and nailed it.