Need some help. New straight 260 Remington, not an ackley. I've got a variety of bullets, 130 Bergers, 123 Scenars, 123 Amax ans 123 SMK's. Need a accuracy load for 1000 yard benchrest. Got all the powders except R17 (not an R17 believer). Need seating depths, primer and powder loads. Thanks in advance.