Looking for a walk around .223 varmint rifle to shoot 55g bullets, unless you are hard over on getting a Savage, I'd suggest you look hard at the CZ527 M1 American or the camo version of the same rifle.
I have one, several friends have them, and they are a true joy as a walk around varmint rifle. I shot 33 ground hogs with mine last summer, 15 so far this summer. It's a micro Mauser action, really accurate, shoots 40g and 55g bullets into tiny little groups, has a detachable magazine and a single set trigger that is a total joy.
CZ-USA -> CZ 527 M1 American