Hey Al,
I've been planning the same as you, and have learned enough in the last month to finally decide what components to choose. In fact, I've already ordered most of my tools for the project. I'm still deciding between an A2 front sight or a fold down sight. Once I got that out of the way, I'll be placing my order with FULTON for their lightweight 18.5 chrome lined.
If you read the Fulton websight, you will see that they say all their 18.5 & 20" barrels are made for
rifle length gas tubes. I spoke to the gal their who says these 308 barrels are chambered with the
Wylde chambering. This is to enhance accuracy and is what the RRA NM .223 rifles also use.
I spoke with the folks at Krieger too, and was a bit disappointed with the ridgid "take-it-or-leave-it" demeanor that they offer their 308 DPMS barrel. They only offer it in 20" , and the guy told me it's going to weight about 5 lbs, compared to the Fulton 2.5 lb barrel I'm buying. It seems Krieger will do anything you desire with a barrel for a bolt action sporting rifle (ie; cut length and contour to your choosing), but don't care to give you options with the 308 Panther barrel. When I told him I preferred the barrel be reamed so that the lands be right up against the bullet for accuracy reasons (like with my Remington 700's) he said "Yes, we get that request a lot" I wanted to tell him that "Well geees, then did you ever consider DOING IT!!!
"
The Fulton barrel is advertised as a Krieger "Criterion". When I asked the guy at Krieger about this, he said it is a completely different barrel that is not even made on the same premises along with the other Krieger barrels. So, it may be a company owned by Krieger, but isn't actually the same animal. (Though I don't doubt that it is still a good barrel)
Don't hesitate to call either place. They both are limited in that they only offer what they offer, but they are polite and answer your questions.Hope this helps.