Illegal!!! No rim fires!!
Are you sure....? Only restriction I see is on Eastern Turkey no rifles or handguns, only shotguns. Most of Texas has RioGrande Turkey
Firearms
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.pellet guns and other air guns are not legal for the take of any game bird or game animal other than squirrel. To be lawful for the take of squirrel, an air rifle must be designed to be fired from the shoulder and use the force of a spring, air, or other non-ignited compressed gas to expel a projectile of at least .177 caliber (4.5mm) at a minimum muzzle velocity of 600 feet per second.
fully automatic firearms are not legal.
a shotgun is the only legal firearm for hunting migratory game birds (see Definitions - Legal Shotgun).
Silencers may be used to take any wildlife resource; however, all federal, state and local laws continue to apply.
Nongame Animals (Non-Protected) may be hunted with any lawful firearm, pellet gun, or other air gun.