If you plot the gun control ranking verses the violent crime ranking there is NO correlation.
If you take the top 25 ranked by Brady Gun Control Ranking, their average Crime Rate Ranking is 25.84
If you take the bottom 26 ranked by Brady Gun Control Ranking, their average Crime Rate Ranking is 26.12
If you take the top 10 ranked by Brady Gun Control Ranking, their average Crime Rate Ranking is 24.3
If you take the bottom 10 ranked by Brady Gun Control Ranking, their average Crime Rate Ranking is 29.2
If you take the top 5 ranked by Brady Gun Control Ranking, their average Crime Rate Ranking is 22
If you take the bottom 5 ranked by Brady Gun Control Ranking, their average Crime Rate Ranking is 27.6