A few years ago I sold everything off to switch to Bighorn TL3's exclusively. The modularity means any of them can be a 223, a Dasher, or a 6.5 PRC (the three calibers I shoot), or anything else that fits in a short action. Because they hold such tight tolerances, any of my barrels go on any of my actions. Additionally, you can order shouldered barrels from a number of shops without sending in an action. In fact, the entire time I've been using this system I've NEVER sent an action off to a smith for chambering. Beyond that, any of the inexpensive Savage prefit barrels work great as well.
The latest is a Proof 6 Dasher in their new Competition contour, a 7 lb pig of a barrel that I'm pretty excited to get rolling as soon as things calm down.
Proof TL3 Prefits Edit: looks like Hig was mentioning some of the above as I was typing!