Dave Twardzik had the second most efficient shooting NBA season ever in 1976-77.
This from Justin Kubatko the guy who created sports reference, and this is his new blog. The only player to have a more efficient shooting season was Wilt Chamberlin in 1972-73. Twardzik also had the 10th most efficient shooting season ever the following season. Pretty amazing when you think about it. Twardzik's ability to finish in the lane was amazing.