I also was lucky enough to find one of the limited run 700 ADL synthetics. I have handloaded several bullet weights 75 gr hornady hp ( for varmint ) 100 gr hornady interlok and 117 gr interlok, all three are sub moa using I4350 or H380. The only thing I don't care for is the short blind magazine, won't let you seat the heavier bullets out to the cannelure. All things being equal, buy it and don't give it another thought. As has been said before I also feel that it is a better dual purpose cartridge than any 6mm. Encore, try Grices in Clearfield, PA they probably won't have the ADL synthetic but I'm sure they'll have at least one 257 Roberts in stock.