Well, there was one that was much worse...
The North Hollywood Shootout in 1997 is a prominent incident where officers ran out of ammunition and had to borrow guns and magazines from a local store to outgun heavily armed bank robbers. A gunfight that lasted 44 minutes in a rolling shoot-out and changed or shall I say started the end of the 870 for standard issue. With today's Trans rages fueled by psychotropic drugs of which many in society take, it makes sense to stay ahead of the curve. May only happen on the rare occasion, but uniformity has its points. The same logic should apply to long guns as well.
Hell, I try to carry the same ammo used by the local Gestapo in case I ever find myself being tried by 12, and damn sure not going to have my handloads in the home defense pistol. I can hear the question now as to why I was loaded with some strange handload created in my workshop, designed on the huge .45 casing that blew the bad guy into the time warping blackhole, caused by the sub-sonic concussion...