Awesome hunt story! I know what ya mean about never selling your grandpas guns, I got my grandpas old shotgun and deer rifle and won't be selling them anytime soon.
I have hit two yotes and one bobcat with my .243, one yote I hit near the stomach area and it blew a nice hole in it. Other I hit as it was running to the call and put a quarter size hole above the front leg and no exit. The bobcat left a nice hole =\ Still skinned it out and stuff.