I'd use the 30-06 out of those choices, but I do love the 45 Colt. I also use H110 and an LBT (310gr) and get 1250 fps from a 5-1/2 Ruger Bisley. I believe these would get about 1500-1600 fps out of a carbine.
John Linebaugh states that a heavy 0.452 hardcast from a revolver kills game as well as a 30-06 or 270 rifle. I'd still take the 30-06 in case longer shots are needed, unless you're strictly hunting heavy cover.