It wasn't the fastest load, but the most accurate 250 gr load for my rifle was 43 gr of H4895 and a Hornady 250 gr spirepoint. I haven't tried any RN 250 gr loads, though. My "go to" load is with the 225 gr Partition and a heavy load of either W-748 or TAC. My rifle is an MRC 1999 bolt action, though, and the loads I use with that bullet may not be best for your BLR.
