Could it be that that the chronology that you pull
Post# of 123719
https://en.wikipedia.org/wiki/Federal_Assault_Weapons_Ban
The Public Safety and Recreational Firearms Use Protection Act or Federal Assault Weapons Ban (AWB) was a subsection of the Violent Crime Control and Law Enforcement Act of 1994 , a United States federal law which included a prohibition on the manufacture for civilian use of certain semi-automatic firearms that were defined as assault weapons as well as certain ammunition magazines that were defined as "large capacity."
The 10-year ban was passed by the US Congress on September 13, 1994, following a close 52–48 vote in the US Senate, and was signed into law by US President Bill Clinton on the same day. The ban applied only to weapons manufactured after the date of the ban's enactment.
It expired on September 13, 2004, in accordance with its sunset provision. Several constitutional challenges were filed against provisions of the ban, but all were rejected by the courts. There were multiple attempts to renew the ban, but none succeeded.
A 2019 DiMaggio et al. study looked at mass shooting data for 1981 to 2017 and found that mass-shooting fatalities were 70% less likely to occur during the 1994 to 2004 federal ban period , and that the ban was associated with a 0.1% reduction in total firearm homicide fatalities due to the reduction in mass-shootings' contribution to total homicides.[40]