I don`t want to start an arguement or anything, plus there is no way to prove it to you folks, but my brother has shot over a dozen moose in the last twenty years using only a 243 with 105 gr bullets. These have all been one shot kills too. He lives in northern B.C. not far from Alaska where the moose can get pretty big. So, yes, I think a 308 is fine.........oh yeah, my father uses a 270 with 130gr bullets for moose...been doing that for over 30 years and I use an 06 with 150s for moose.
Ron