We keep chickens and other domestic livestock and a .22 is perfect for keeping pests away when this close to the other outbuildings.
It is a whole lot cheaper and quieter than using a .243 Winchester and does the job just as well.
Even now, after being introduced to the sport over 30 years ago, even now I gain great pleasure from shooting river rats and field mice with a .22 rifle.
Many years ago my cousin and I used to get a nickle a rat bounty from the local dump and this was our movie money.
.22s were .63 cents a box then and if you were really good you could make
$1.87 profit in about two hours, good money for an eleven year old.
The abundance of field mice doesn't seem to keep the corn and black snakes and fox and coyote away from the chicken pens so I happily murder them for not doing their job, the .22 is perfect for this task.
I hate rats, they serve no useful purpose whatsoever, even the snakes won't eat them.
Cute as they make raccoons and opossums on the animal planet network, they are incredibly destructive in real life and I will shoot them without mercy when they become a problem around the outbuildings or the animals.
Again a .22 is perfect for this task and won't punch gigantic holes through the sides of the buildings if you get a ricochet or poorly placed shot.
Unless you are good enough to hit a moving target, at night, don't try shooting the coyote and fox with a .22LR, this doesn't work so well, this is the realm where that nasty AR15 rifle shines, If I could just get ITI to sell me a 4th generation night vision pocket scope for under $1000 I would have this problem licked,,,,,,,,,
Velocity is based on the chosen type of cartridge and barrel length.
.22 CB Longs are about 800 fps
.22 LR Subsonics are about 980 fps
.22 LR standard velocity are about 1085 fps
.22 High Velocity are about 1190 fps
.22 Super high velocity-Stingers, Expeditors, etc. are about 1325 fps
Your results may vary and a .22 LR bullet is capable of inflicting a serious injury to about 500 meters, plan your backstop and know what is behind the area you shoot in.
In realistic terms, using average muzzle elevation from a shooting position, a .22 bullet will generally not travel more than about 3500 feet over flat level ground before it hits the dirt.