I just bought a FNP 9mm from the bunker in San Marcos yesterday.
They specialize in Semi and Fully Auto Weapons.
Robert is the man over there, very helpful and didn't talk down to me.
They're located behind the Sac N Pac on Wonder World and 123, if you get a chance stop in. They got some semi auto 45 rifles that look like Robocop stuff...very cool, but not cheap.
I would be part of a grass roots gun club. Take turns going to different peoples land and shootin'. But nothing too official.
I got 20 acreas and a huge dirt burm that I shoot at all the time, in Martindale.