TexasCHLforum.com

Just be careful to check your city ordinances. Firing an air rifle is illegal in many cities. They often include air rifles in their definition of a firearm. Obviously, TAM, I don't know where you live in particular, but from the Grapevine city code:
Sec. 15-1. - Firearms and similar weapons—Definition.

As used in sections 15-2 and 15-3 "firearm" means any device designed, made or adapted to expel a projectile through a barrel by using the energy generated by an explosion or burning substance or any device readily convertible to that use, including but not limited to a rifle, pistol, shotgun, air rifle, pellet gun, BB gun, air gun.

(Ord. No. 75-17, § 1, 5-20-75)
Sec. 15-2. - Same—Conditions to discharge.

It shall be unlawful for any person to discharge or fire off any firearm within the city except as follows:

(1)
Firing or discharging of a firearm in a shooting gallery that is operating in accordance with all applicable state and federal laws and city ordinances.
(2)
Firing or discharging of an air gun on property owned by the party firing the air gun and his immediate family, provided that the discharge is no closer than 150 feet from any structure, except that of the owner, used for human habitation. Nothing contained in this exception shall permit the discharging of an air gun whereby the projectile falls on the land of another.
(3)
Firing or discharging of a shotgun during legally authorized hunting season with a license or permit duly issued pursuant to the laws of the state and federal law, provided the hunter has permission from the property owner on which any projectile would fall on or over their property, and provided further that the size of shot that can be used is restricted to size number six and smaller.
(4)
Firing or discharging of firearms in defense of self, family or property.
(5)
Firing or discharging of a firearm by a duly authorized peace officer in carrying out his lawful duties.
(6)
Firing or discharging of firearms when permitted or authorized by the laws of the state or United States.
(Ord. No. 75-17, § 2, 5-20-75)
State law reference— Discharge in public place, V.T.C.A., Penal Code § 42.01(a)(8).

Sec. 15-3. - Same—Discharge across public property or near business houses.

It shall be unlawful for any person to discharge any firearm of any kind on or across any public square, street or alley in the city or within 50 yards of any business house.