REMINGTONJIM: I am sorry if I cornfused you - that was not my intent.
As far as comparing the "quality" (as opposed to accuracy?) of the XR-100 barrels to "regular" Remington centerifre barrels I can give this observation and its somewhat "general" in nature.
The XR-100 barrels and the regular Varmint barrels on my many and varied models of 700's are comparably similar in ease of cleaning.
And that could be best described as fairly easy to clean.
Bore scope inspections of both models of barrels rendered images of similar finish (fair+).
I do not remember much of the factory "hype" for the XR-100's other than they referred to the XR-100 as a "target quality Rifle".
In specific - I think the XR-100 barrels are of very similar quality to the Remington 700 Varmint series of barrels.
I personally wish (DREAM!) of Remington offering this XR-100 Rifle still.
And offering it in cool additional calibers like 17 Remington Fireball, 17 Remington, 222 Remington, 222 Remington Magnum, 6mm Remington and 260 Remington!
Well I can dream can't I?
Hold into the wind
VarmintGuy