Made it out to another store today and was able to handle the Ruger, Tikka, Sig, Daniel Defense (2 diff chassis), Bergara, Christensen and Savage. I also handled two high end guns, one in the $3500 range and one that was $10K. I also spoke at length to a gun smith on various topics which was enlightening.
Thoughts...
I like the weight of the Sig and Christensen. The sig's proprietary (damn you Sig!) but as others have said, there may be barrels coming out specifically for the Sig and I'd bump it up to 21" or so. No point in going 24" on a 308 IMHO. I then pick up the others and they feel like lead weights. And of course I can add weight when needed as others have mentioned. I'm still not convinced on the Christensen's carbon barrel so I'm probably going to nix that one. The Sig takes Magpul magazines! I have lots of those in various sizes for 308. The trigger was pretty decent, not the best out of the lot from what I can remember but it was pretty solid. I tried it back to back with a Triggertech-equipped rifle ($3500 gun) and it was about the same.
The DD was nice, a bit more than I wanted to spend. They only had 6.5's in the precision chassis and had a Delta 5 in 308. I'm warming to a stock but it did feel like plastic. Bolt action was decent, trigger was nice on both. Takes Magpul as well.
I handled another Tikka Tac A1 and still felt a bit low budget except for the action. I could probably spruce it up a bit. The Tikka trigger did have a wee bit of take-up but broke cleanly. And yes, it comes in a 20". I may look into a Tikka action with a custom barrel and then drop it into a less expensive chassis, possibly upgrade that down the road.
The Bergara was a discontinued LRP 2.0. I don't know much about Bergara but nothing about it really stuck with me.
The Ruger. This one was a bit of a surprise. First, it was a 6.5 with a 24" barrel so it was heavier than the 308 version and 20" barrel. The trigger was brilliant. First one I handled was used so I asked for one of the new ones just to compare and make sure the first wasn't aftermarket/modified. I checked three and all had an absolutely fantastic trigger. No creep, no take-up. It does have the finger safety naturally but man, I really liked it. The action was a bit more finicky than say the Tikka or Sig. I was really expecting it to feel cheap given the price point. I will say the Sig does feel a little more "precise" and waaaay more wieldy due to the short barrel and weight.
The $10K gun was an FNH Ballista 38 barreled in 338 Lapua but included a 24" 308 Win barrel as well. Honestly, the Ruger trigger was better. But man was that a cool gun.
So on the Sig, can one swap in an aftermarket trigger? I couldn't find any info on that.
I also was turned on to rem-age barrels. Don't really know anything about Preferred Barrel Blanks (good or bad) but the concept seems end user friendly and would probably push me towards building my own.