I have a 270 Wby (Rem 700 long action) that I am not happy with, so have decided to rebarrel to a 7mm. I am looking for a long range hunting rifle with good horse-power. I am not looking for the most efficient round, because the rifle will only be used for some load development, then hunting. Bullets will be 170gn and up, VLD style. I am thinking an 8 twist barrel would be preferred to give me options with some of the newer high BC bullets. I have considered the 7WSM, a 7mm/375 Ruger wildcat, or the 7mm Rem Ultra Mag. The 7/375 Ruger seems like a very good option ballistically and would be my first choice, BUT I am not sure that I want to go down the route of sourcing dies and forming brass. The 7RUM solves a lot of these issues, but really is getting into big case "barrel burner" territory. However given that I am not too concerned about barrel life, and do want to run heavier bullets, the 7RUM may well be the "best" option for me. At this stage of the process, is there anything I have overlooked? Or have I talked myself into the RUM chambering?