RE: Newbie Question?
If you want an excuse to buy another gun, then go ahead and buy another. I would suggest looking at the Ruger 204 instead of the 223 or 22-250?
But if you like your 270 and want to resight it in with the 100grain bullets each time from deer to dogs, then yes your 270 will work just fine. Providing the bullets will stabilize in your rifling. The 270 rifling is set up to work best 130gr and 140 gr bullets. But you won't know until you shoot some 95- 100 grainers. I start with a BT hornady or alike first, probably.
How's that for confusion?
If I can help, give me an e-mail
Mike