http://birdstuff.blogspot.com/2007/12/shoot-feral-cats.html
Bret Ludwig said...
I can say from experience that shooting ferals works-if done
consistently and persistently.
Ferals exist in a netherworld of neither truly wild nor domestic
existence, they depend on garbage or cat lubbers, both of which are
human in origin. Felis Domesticus does not have a wild niche in North
America at present or we would have actual wild small cats. The bobcat
is the smallest "niche" for sizes of feline here.
Burn the trash and deter or stay under the radar of the cat
lubbers, and shoot, shovel and shut up.
I've found that shooting cats is humane if you use enough gun and
organize the shoot properly. Rimfire cartridges are not adequate.
Either .223 class centerfires or pistol class ballistics cartridges at
least 30 caliber are needed. By far and away the 7.62x39 is the
cheapest round.
I've used .32 ACP in subcaliber adapters in .30 caliber rifles at
very close range with success as well as pistols.