Get that .270
Don't even know where to began with this Dave (so I wont) Sounds more like a matter of person preference.. which is fine.There is nothing wrong with a .270 for deer size game but I find them a bit lacking on bigger thicker skinned animals. An 06 is perhaps one of the most versatile calibers available. There are factory loads from 125 grains to 22o grains and if you go to some of the premium high energy loads you are approaching 300 Win. Mag capabilities.
Regarding the Springfield action it is a weak action as compared to Mauser actions and can not withstand very high pressures. Modern factory loads would not be a consideration for use in my opinion, particularly the high energy loads.
I know there are a lot of devotees of the .270 that will claim and have shot everything with them. Over the years I have owned a few and within what I perceive limitations is a nice rifle. But it is not the rifle I want if I have to shoot at a 500 pound plus elk at over 200 yards. With a .270 I really wouldn't want to take a shot at an elk much over 100 yards. I hate tracking wounded animals.