I'd go with a 3X9 from Leupold or Burris. That should give you plenty of scope for anything out to 600 yards or so. I'd also stay away from Weaver mounts with that caliber. I've got Leupold mounts on a .338 Win Mag that have held up well. As for free floating, don't file the receiver. Wrap some 80 grit sand paper around a wooden dowel and sand down the stock channel. Pretty easy to do. You might want to skim coat the stock with Acraglas after thatremington70023 said: