I'm contemplating spinning up a .338 RCM barrel for my Tikka. Will be used for moose and black bear in Eastern Canada. Would love to hear any experiance with the round, and bullet selection. Ranges are often close-30-100yrds, but can get out to 500-600 on moose when the stars align. I'm thinking 250 scenar might work nicely, since there will be plenty of room in the Tikka.