Seems like I see lots of talk about buying a Savage because they're the best measure of accuracy per buck. But I also see lots of talk about barrel swaps. I realize it's because with a Savage you can... vs more difficulty with many other rifles, but is it something like:

Savage Standard Taper Barrel (stock) = 1MOA
Upgraded barrel (the right one) = 1/2MOA or better

or are we talking more dramatic differences?

I'm a hunter and I am not one to burn through shells at a quick pace when I do make a range trip. I usually let the barrel cool between shots and take my time. Curious if I NEED a new barrel.