Don't know about the 9x19. The only 9mm shot rds I ever used were special GECO RF cartridges through a smoothbore. They worked great on small pests out to about 20 yds, but were an entirely different thing.
The CCI .45 ACP shot rounds will actually cycle in my 1911's, CZ97 and S&W 4586. Past about 10 ft. the patterns are pretty thin and getting spotty. Inside that they're deadly on venomous snakes and great for astounding credulous nephews with one's "skill" hitting hand-tossed clay birds with a pistol.
I used to carry at least a couple of rds of the CCI .38 Spl. loads in my old Dan Wesson revolver every day while working a ranch in SW MO many years ago. Same sort of range limitations, but accounted for many a Copperhead, rattler and Cottonmouth that wouldn't just go away.
I never had as much luck with the .22 RF versions, CCI capsules or crimped brass. Even mice would sometimes need more than one hit to kill if they were more than 6 or 8 ft away. Rats in the feed locker usually needed a coup de grace with a .22 S solid to finish them quickly.
'Way back when I was a Scout and such things weren't "inappropriate" we earned Merit Badges learning wingshooting with special smoothbore Remington and Mossberg .22 RF arms and special reduced-size clay targets. With those the effective range was almost quadrupled compared to rifled arms.