Y'all are giving me a heartache. A few years ago I found and paid $275 for a nice 151 series Service Six. I was wanting to make it into a bigger something of this nabbed internet pic.
Called Ruger and talked to them about replacing the 4" barrel with a 2.75" (I would've handled the action work myself afterward). They told me they did have a sum total of two new 2.75" barrels in stock, but unless my barrel was unserviceable they wouldn't change it. Even though I was going to pay for the new barrel and service for replacement! Reason being they wanted those barrels to service guns that were no longer working. I figured at that time it wasn't worth the outlay in cash to send it to Camerons for a full custom. I was maybe right, but damned if it wouldn't have been sweet.