No love for the Model 94 30-30 here? I have taken many a moose and Elk with my trusty model 94. Heck,..My first big game hunt with my dad when I was 14 landed me a decent size moose with minimal skills compared to what I have learned over the years I have in now.
Unless Moose and Elk have somehow magically gotten much bigger, much strong and grown thicker hide as a self preservation method to the hunters of days gone by,..I wouldn't hesitate for a second to harvest one with a 30-30. 10 of thousands of moose, tens of thousands of Elk and probably hundreds of thousands of Bison have been taken with a 30-30 and WAY less complicated ammo than what we all currently use.
Not all game needs a 300 win mag or a 338 Lapua to die. Having said that, I own both a 338lm and 300wm. Neither have taken big game.