I tried this years ago and failed. I should try it again.
Commonly called the “old Air Marshal (FAM) course,” it was created for Federal Air Marshals in 1992. In cooperation with the Office of Civilian Airline Security, it was developed by a private instructor in the Fort Bragg, NC, area who routinely taught skills to certain units based at that facility. It eventually became the qualification course for all Federal Air Marshals. Those who passed it received their flying orders. Those who failed went back for more training. It was not an easy course. In fact, when senior officers from the Joint Special Operations Command attended and reviewed the course in 1998, their opinion was that those passing the TPC were among the top one-percent of pistol shooters in the world.
I expect I will fail again but I now have easy access to a place where I can practice on the stages I difficulty with.