http://www.sas.upenn.edu/jerrylee/research/aw_final2004.pdf Should it be renewed, the bans effects on gun violence are likely to be small at best and perhaps too small for reliable measurement. AWs were rarely used in gun crimes even before the ban. LCMs are involved in a more substantial share of gun crimes, but it is not clear how often the outcomes of gun attacks depend on the ability of offenders to fire more than ten shots (the current magazine capacity limit) without reloading. It's like the fiscal cliff crap. All the Dums want to talk about is raising taxes on the rich, the rich, the rich. It doesn't solve anything.