What I found, messing around with my 500-yard range:
26" barrel, handloads with Sierra bullets. 150-grain SPBT; 165-grain HPBT, and 180-grain SPBT.
I started out with my usual deal of 150-grain bullets, two inches high at 100 yards. I'd "guesstimated" in earlier shooting for a four-foot drop and hit right at dead center on the hanging steel plate.
I came up 32 clicks, eight inches, at 100 yards from the original two inches high. That put me close to center for all three loads--which was rather surprising.
You're from BATFE? Come right in! I use all your fine products!