This is from Page 13 of the 2018 Big Game Brochure, you can look it up on-line:
"Shotshell primers and B.O.R. Lock MZ System bullets are legal."
So it doesn't specifically address the Remington ignition system. I'd call the number listed on the cover of the big game brochure and ask the question, they're pretty good about getting you the answer to questions like this.
