Grouse...
That bullet really did seem to do well - for the first time shooting it. And that 200 yard target would have gotten the job done - especially with the additional penetration that is possible with the XP design.
From your numbers - I calculated the BC @ .140 and created these ballistic sheets.
The first sheet is with a 100 yard zero as you shot the targets.
The second sheet shows the way I would shoot it. I would use a 6" PBR, creating a zero of about 150 yards... But really what it does is allow me to aim dead-on from 0 yards to 186 yards and never be more than 3" high or 3" low.