I have two 30-06s and they're dandy weapons but everything I've read about the hunting in Maine is that most shots are fairly close or at least in heavey cover. Th 45/70 sure would be nice. Aways wanted one especially ammo loaded stronger by specialist like Garrets or Superior for bear or moose. I imagine standard loadings would be more than enough for deer.

As a former range master and avid shooter all the above I’ll put the Remington 700 in .30-06 out of the box against any other rifle hands down!

While your looking, you ought to check out a Remington 700, chambered in .308 ... like Clay said, I'll put a Remington 700 out of the box up against any other rifle out there. I have one and feel confident going up against any game in North America, using a bullet with the right weight for the job.

Writing with the full authority of complete ignorance on Maine Hunting, stick with the advice from Jim in Mo and Clay Cooper. Buy a Rem 700 in 30-06. When you are as old as we three are, you'll be hunting elsewhere besides Maine, and thank us after we are long gone.

Either rifle would work just fine, but I would go with the 30-06 because it's good both near and far. A 180 grain bullet from any manufacturer (Core-Lokt, Silvertip, or anything else) would do just fine for moose or black bears. 220's would be outstanding too. Best of all, you don't have to handload, you can get ammo for the Springfield for less than $20 per box, there is surplus ammo available for less than that.
That hot-rodded 45-70 ammo is upwards of $50 per box, and absolutely no fun to practice with (ouch!). I have an 1895G guide gun and I've shot a lot of the Cor-Bon and Garrett, and Buffalo Bore stuff in it, but it's a religious experience for the shooter and any witnesses, let me tell you. Just go with the 30-06, six generations of riflemen can't all be wrong.
Alaskan Exile

personaly id get the 1895g 45-70 with the xs sight's and forward mounted scout scope, thats what I use in vt, it will take anything down and i do mean anything !!!

I live in New Brunswick just a little east of the state of Maine and have about the same type of forests. I think a 270 in any manufacturer would do. It really depends on what type of hunting you like to do. Some people like sitting in a tree or blind with a shooting field of 200 to 350 yds. Some like driving around to find deer in fields or on the road(cadillac hunting) Personally I like and have had some luck right in the bush still hunting or creeping around slowly. Never the less a 270 is not heavy or too long for the brush and has good killing power under 400yds. My opinion a good all purpose weapon

Check out the Tikka T 3 Lite in 300 WSM or .338 Federal. I have both and they are great shooters and excellent cartridges for the animals you want to hunt.