Is the 40% Rule Right?

By al, March 6, 2013

One of the most repeated statistics in the gun control debate is the “40%” rule.  As the saying goes, 40% of all guns are sold on the open market, maybe between friends or strangers but not through retail gun stores.  That is why the President, for one, wants a universal background check requirement.  But is this figure, 40% real?  Here is one view from the Chicago Crime lab researchers.