Lock and Load is on SW loop 323, next to Sweet Sue's Resturant. About the only time I use it is to renew my ccl.
With my work schedule I can usually hit 31 West during the week and have the range to myself. I just renewed there, annual family dues are $150, so you could compare to one visit to Lock & Load and see which works out best for you.
At one time Lock & Load allowed high power rifles, saying that the backstop material would handle anything up to a certain velocity level, I do not remember what, then they found bullet holes out the back wall going into a back service alley, so I think they stopped that, but you might check before carrying rifles in.