LOL. The .45 is a little tamer than the 9. On the dirt, the .45 puts them in a nice little 4 foot circle. On the pavement, all bets are off.
That truly beats anything I have ever fired. Shotguns seem to eject shells fairly consistently. Still, not that tight of a group.
Also, if there is a shoot scene with say 3 rounds within about 5 feet of a suspect, and all the casings, (like the cones seen in video at the scene with the body still present) are within 2'-4' of each other, this will show very closely where the shooter was when they were fired...Not exactly, but very close.
Juries when shown the pattern of how the same weapon generally ejects, mostly always agree and this eliminates most of the questions regarding where the shooter was when the rounds were fired....
Add in that angle the rounds entered the body, in relationship from the casing locations to the body's point of rest and you can nearly pin point where the rounds were fired from.