I just built a 6.5-284 on a remington action that i had laying around. After truing, chambering, barrel, and stock. I only have 700 in the gun and it shoots 1/4" five shot groups at 100yards, I'm sure it will shot alot better once I let the gun shoot.
In "the ol' days" ADLs and BDLs used the same actions, gloss, blued. In the past few years, the ADLs have been matte finished, I don't know what it is but they sure are not as smooth as the BDLs. Some of the Senderos and VS models have the matte actions, too. I'd guess that the finish is the only difference in the models.
hmmm, another thing I would like to do, is stick a WSM, into a long action, that way, I could seat the bullets out a bit farther. Does this make sense or am I being silly. And if I did do this, what are the chances of finding a WSM in a standard action. LOL