20 is plenty. I also like using my gamo air rifle, it does a great job on them little boogers out to 40-50yds....
Fox and Gray Squirrels are Game Animals and air rifles/pellet
guns are illegal to use on any game animal or game bird.
Means and Methods
NEW LAW: Silencers may be used to take any wildlife resource; however, all federal, state and local laws continue to apply.
Game animals and game birds may be hunted with any legal firearm, EXCEPT:
•white-tailed deer, mule deer, desert bighorn sheep, and pronghorn antelope may NOT be hunted with rimfire ammunition of any caliber.
•shotguns are the only legal firearm that may be used to hunt Eastern turkey during the spring Eastern turkey season (see County Listing). Rifles and handguns may not be used to hunt Eastern turkey.
guns and other air guns are NOT LEGAL.
•fully automatic firearms are NOT LEGAL.
•a shotgun is the only legal firearm for hunting migratory game birds (see Definitions - Legal Shotgun).
Nongame Animals (Non-Protected): Any lawful firearm, pellet gun
, or other air gun
is legal. http://www.tpwd.state.tx.us/regulations/fish_hunt/hunt/means/
The following are classified as game animals:
Desert bighorn sheep
Gray or cat squirrel
Red or fox squirrel
Collared peccary or javelina
Nongame and Other Species
Includes, but is not limited to the following: