Having worked at the Nellis range for over half my USAF career, my *guess* would be the aircraft were on ingress to the range complex using NOE flying rules and ran out of luck and altitude at the same time.
The ACES II is a robust, zero-zero seat and proved again to be up for the task at hand....
Very happy to hear both pilots got out in one piece. I’ve cleaned up a lot of downed aircraft in and around the range complex - always hard work and if the pilot was lost, heartbreaking....
Given my over 800hrs flying the A-10, I would say it was a Weapons School BFM profile. Just a guess for now.