I don't think I watched Kentucky all year so I can't really comment on Murray, but I will tell this cautionary tale. When I was in high school my coach let me burrow his coaching tapes to instruct other coaches. On the Bobby Knight one, he had Steve Alford doing the shooting drills. They went for probably 30-45 minutes through drills and Alford touched iron maybe twice the whole tape.
I thought, that guy will be unstoppable in the NBA, he never misses. Well, it isn't so easy when people are guarding you and there is the whole defensive side thing. You always have to pump the brakes a bit when dealing with shooting against air.
On the other hand, Wiltjer held the previous record and I've been saying he is someone the C's should go for early in the second round. 6-10 guys who can shoot like that don't come around often.