TexasCHLforum.com

These guys have a private range near the Bracken Range off of 3009. Not saying they will let you but, they are all vets and considering these circumstances, they may make an exception. Never hurts to ask.

http://www.lonestarhandgun.com/

Having been to most of the ranges in and around the S.A area, this is probably the best option for this particular situation.
But if all else fails, I'll second the vote for http://www.brackenrange.com/index.htm