“How many are used daily in crime sprees?”
From my extremely limited research, the number of NFA weapons used in crimes, going all the way back to 1934, appears to be 2. And I know one of those was a cop so that hardly even counts.
The moral of this story is an honest person can own a machine gun and never shoot anyone and a criminal will kill you with a baseball bat or a kitchen knife.
And, once you start letting the DEMOCRATS ban self defense tools, they will ban two sticks with a string tied between them.
1) Metro Dade Narc officer in the early 80s used a MAC .380 SMG and suppressor to kill a CI. He "borrowed/stole" the firearm from his friend whom was the Transferee.
2) In a domestic dispute in PA, a cop killed his wife with a short barreled shotgun (SBS) in which he was the transferee.
In the mid 90s, a SWAT officer used an HK MP5SDA2 that was form 10'd to his department to kill his wife, another cop (his wife's boyfriend), the IA detective, and his supervisor.
4) An officer used a suppressed .22 LR that was registered to him to kill his wife and lover when he came home from work early. He used his own .22 Ruger suppressed as he was a SWAT team leader who took his own pistol on patrol to take out street lights to darken areas before a SWAT raid.
5) A Destructive Device was used by an AR doctor to bomb someone on the medical board who suspended his license.