I’ve been having some issues with my SP-101 in .327 Fed. The short version is the gun would lock up after firing 12 or so rounds with really sticky extraction of empties once the gun cooled enough for me to open the cylinder. I called ruger and they emailed a shipping label. I got the gun off to them Friday and they confirmed receipt Monday. Today (Tuesday) I received an email informing me a tech was looking at the gun. 15 minutes later, I received another email saying the gun was on its way back to me. Repair complete. That sort of turnaround time has me suspicious. I guess it’s possible if the problem was oversized chambers and they just had to drop in a new cylinder.