I’m on your team, that’s for sure.
I did once shoot a 248/250 on the USMC KD course with a rusted M16A2. (I think the Corps uses the M16A4 now.)
Don’t know what the KD course is/was, but I used to hit high 40’s/50 at 500 yds. in prone position, using the M-1. Standing position was my undoing, though.
I’ve seen range instructors hitting bulls eyes with the M-1, standing, one-handed at 500 yds.!