Can't speak to the Texas laws, but you can probably find it easily on the internet. Don't count on local law enforcement to know this one. As Brent, I'm also in NC, and have done a little research. First, city and county laws are inconsistent, both among themselves, and the state. In NC, state law prohibits discharging a firearm or air rifle within 100 yards of a dwelling. My city prohibits discharging an air rifle within the city limits. Other cities and counties do not, but the state law would apply. So, you need to do local research. In most locations, my guess, common sense would prevail. If you keep it quiet and in your yard, it's probably unlikely you will run into trouble. But, you know your neighbors and I don't. If shooting in your yard is in violation of law, and you have neighbors who are anti-gun, or, with whom you have an adversarial relationship, then maybe discretion is the better part of valor.