Didn't get around to do any load testing/development today but did throw together a load that works well with the 75gr HPBT. 24.0gr of TAC, PMC brass and the 73gr ELD seated at 2.255" OAL. I got a zero at 100 and then dialed out to 600 for another 3 shot group.
M00_9070 by
X Ring, on Flickr
First 3 shots at 100 yards, 5/8" or so (all day long right?)
3 at 600, roughly 3" (I underestimated the muzzle velocity and wind which made them fly high and right.)