Awaiting the reply of AmericanMarksman, who was selling 750gr mk263 AP 50bmg ammo. They state it is like match ammo with the design while being harden steel AP rounds. I looked at some information online and it seems it is more accurate than ball or the old m2 AP rounds. However, I cannot find the BC of the projectile. Their first reply for me was just a copy and paste of the specs on their website which does not state the BC...I guess whoever replied isn't too smart when I asked for the BC or just doesn't care.
Hoping someone here knows, as I might want to stack this a bit deep instead of AMAX's if the BC is decent (not planning on shooting 1000yards+; dont need insane BC).