Looking at building a long action long range rifle. The Savage Varmint and Target actions are only available in short actions. What kind of accuracy can a Savage long action produce, given a decent trigger, barrel and stock?

What are the advantages/disadvantages of using a Savage action over a Rem 700? Won't be swapping barrels so that isn't an issue.

Is there a reputable co blueprinting/improving on the Savage long actions like so many do for the Rem?

Any and all info welcome, Matt.