We are working on building the information on our class III directory. We have added a page called NFA Friendly Ranges and would appreciate any info on ranges that allow full auto fire. If you know of any regardless if they are in Texas or elsewhere we would appreciate your help.
Impact zone is members only but a great facility. They have lots of IDPA and visiting instructors. Located just west of Houston. Very NFA friendly range and well run.
The Bullethole in San Antonio, if you want to risk your life shooting there. They rent Class III firearms, not sure if you can bring your own though...