I got a great deal on a pre-owned Aero Precision X15 build chambered in .458 SOCOM about 2 years ago. It came with a Burris RT-3 which I was pleased to discover worked very well for me. I'm older and the 3x is just right for me. Not only for longer shots but closer at 25 meters as well. I know everyone's eye is different but this works so well for mine I just mounted a new Burris RT-3 on a Ruger SFAR.
BUIS are for a failed / dead red dot. Prism scopes still work if the electronics are completely fried. Put a set of irons in your bag. Or even better, put them in your bag attached to another rifle, because whatever rendered the prism non-working likely got the rifle also.
