KCMitch, the leg match was an NRA sanctioned match for military (or at least USAF) personnel. They would make an announcement of the date and time and give a contact number.

You signed up and showed up. They provided the weapons and ammo. The Top 10% of shooters would be awarded the "USAF Excellence in Competition Pistol Shot Badge" (whew! what a mouthful) and, if I remember right 3 points towards a silver badge and eventually a gold badge. But those matches you had to seek out and shoot at your own expense. An excellent program that was rarely used, even back in the late 70's/early 80's. The USAF, which used to have a top-drawer shooting/competition program back in the 50's and 60's, stop putting a lot of emphasis in it by then. Sure hope things have changed.