CK the ambiguity is that you only post 750s. Not that it can't be done, but (to my knowledge) it is rarely - if ever - done outdoors, at official matches (correct distance, others scoring, etc).
For those of us who compete in sanctioned matches, 250s are a rare prize...not to mention 750s. It is possible the conditions at your range are not equivalent to those at Oxnard, Phoenix, or in the NE US.
The best and most valid competitions are head-to-head official matches. You are certainly a very good marksman, with superb equipment and resources. Sanctioned head-to-head matches will maximize your enjoyment of our sport.