I actually was having the same questions before and these guys gave me some good ideas. I was looking for a 7mm but im looking for an elk gun. here are 2 of my thread where they gave me some good tips
help for new lr rig
Sendero as a starting point?
but in all honesty if you are looking for a 700 action the best way to decide which gun is best for you is to look: Bolt Action Centerfire - Model 700 Centerfire Rifle - Remington Bolt Action Centerfire Rifle
. How i came up with the sendero is literally just going down one by one and seeing which guns came in the caliber i was looking for (7mm). if you know which caliber you are looking for this then becomes a simple task of comparing which out of the box guns come in the caliber you want and what pros/cons do each have. that should be a great way to at least get an idea of what to get.
As for which caliber ill let the more experienced members here answer that...
p.s. How is the Viper treating you? My questions and indisicion is on scopes and that is one that im very interested in so im just wondering how its treating you.