Ive been really looking myself at building a custom bolt gun. I've been going back and forth between a Defiance Deviant Hunter and Stiller predator. It honestly seems to me no matter what you get as far as custom actions go they will all serve you well and be much nicer then any off the regular off the shelf actions. I've really been thinking about building a custom .30-06, with a 24" threaded barrel in some sort of McMillan stock for a really nice custom hunting rifle that I can kill anything in North America with.