30-06 is a good caliber. I had one once. Don't have it anymore. Don't miss it. My .270 win can do just about anything the 30-06 can do, with less recoil and flatter trajectory. If I need any more stopping power than a .270 can deliver, I bring a stopper rifle with considerably more power than a 30-06. The .270 is boring? Check out the ballistics tables and see what it takes to shoot flatter than a top end 130 grain boattail .270 win out of a quality bolt gun. My 130 grain Barnes TSX handloads flirt with 3200 fps and are safe in my rifle. No holdover required on deer sized game out to 330 yds. I have a Tikka 695 Whitetail in .270 win. It has never failed to shoot any load, factory or handloads, at or sub 1" groups. Tikka barrels are very high quality. I once fired 60+ rounds off the bench in July heat without paying attention to letting the barrel cool. I detected NO point of impact drift whatsoever. Super triggers too. Either caliber is a good choice. But unless the majority of the game you hunt is 1000 lbs+, the 30-06 really doesn't offer anything the .270 doesn't, except more recoil and less flat trajectory. Black bears and moose are well within the .270's acceptable range of applications, provided a quality projectile suited for what you are hunting is used at a reasonable range. This is no less true for a 30-06, or any caliber, for that matter.
Good luck with your choice!
Good luck with your choice!