On average, NBA teams historically make about 75% of their free throws. That is a 15-foot shot from straight on, no contesting, and every player in the league shoots and practices them constantly. The best shooters in the NBA make 3's at about a 60% clip in the 3-point shootout (that's just the average make % of the winners, it's much lower if you average all contestants). Again, that's unguarded, spot up shots from the 5 highest percentage spots behind the line, and only counting the best shooter in the NBA each year. The average NBA player does not make 70%+ of their 15-23 foot shots in an open gym. Tyler Hansbrough is an above-average jump-shooter, and he hit 43% of his long twos this year, making under 2 per game. He is not going to continue to hit 7+ long range shots a game, even if Boozer is playing off to prevent him from getting actual high percentage shots. Free throws are shot in a game, with 15,000+ people watching in the arena, many more on TV, and with some added pressure of wanting to help your team (and, cynically, your paycheck). Free throws are ABSOLUTELY more difficult shots than open jumpers in an empty gym. Same with the 3-point contest. It's simply not comparable at all. Honestly, I can't tell if you're serious or not. Having played some with average NBA players (and seen more shooting around), I believe you could not be more wrong. Those guys knock down long 3-point jumpers like they're nothing. So do good college players. In empty gyms, they ostensibly don't miss.