San Clemente island way south would have been the likely place for a bombing range. Mostly deserted and still used for SEAL live fire training.
Flew out to San Nick a couple times for some drone testing. Flully instrumented island with radar and missile launch sites. The ocean airspace is highly controlled with narrow airliner passage zones.
Ended up working at Pt Mugu for a few years, though in the early 2000’s it was winding down from the old heyday you remember. At any of the airshows when they did missile and gun shoots? SR-71 flyby was one of my favorites.
I don’t remember missile and gun shoots during the Point Mugu Air Shows I attended.
I remember one year there was a Harrier jump jet, and when that plane stopped and hovered in mid-air it was a real show stopper.
I don’t remember an SR-71 fly by....lots of F-14s, A-6 Intruders, and an occasional E2C Hawkeye and EA6B Prowler.