Zander,
Looked at one at the last NRA Convention. Dan Wesson with the interchangeable barrels, chambered in .460 Rowland. Would also fire .45 ACP and .45 Super (obviously). Interesting gun. The one I looked at was blue, but the cylinder was a different color (blue, but not a match to the frame). Rep from the company said it was caused by the heat treat necessary on the cylinder. They show them on their website if you're interested. My problem is I can't find a dealer in Indiana that carries Dan Wesson.