Looks like the cast barrel missed the finishing step that you eventually performed. Cast barrels need quite a few finishing steps before road ready.
I have had 2 or 3 unfinished cast parts sneak into my Rugers over the last few years. I had a 2008 SR9 which I sent back for not only the recall, but for the entire underside of the slide appearing about as rough as a gravel road. The new slide was night and day better so I can only assume the first one missed a step in the QC process[or lack there of as of late]. I am sad to see Ruger failing at QC so often. I often wonder if it is just the interweb phenom or is Ruger just plagued with craptastic QC ever since WBR passed along.
Make sure you keep us updated on she runs!
I have had 2 or 3 unfinished cast parts sneak into my Rugers over the last few years. I had a 2008 SR9 which I sent back for not only the recall, but for the entire underside of the slide appearing about as rough as a gravel road. The new slide was night and day better so I can only assume the first one missed a step in the QC process[or lack there of as of late]. I am sad to see Ruger failing at QC so often. I often wonder if it is just the interweb phenom or is Ruger just plagued with craptastic QC ever since WBR passed along.
Make sure you keep us updated on she runs!