I had a Hunter model that Ruger sent to me as kind of a warranty thing. I'd bought a brand new .44mag Stainless SBH. When I got it home I took it all apart to inspect everything and properly lube it. I noticed a pin hole of porosity in the top strap of the frame. It was actually bigger than a pinhole. You could not miss it with the cylinder out. I called Ruger and talked to somebody in product service. I asked if there was an acceptible level of porosity in their frames. The rep said that they don't have porosity in their frames. I told her the one in my hand did. She asked me to send it to her, which I did. A few days later I get a call from Ruger and they would like to replace my SBH with a new one, but they would not have one for a few weeks. I asked if they had a Hunter available and she said yes. A few days later, the gun was at my house. The only challenge here was it had a different SN and it was not on my permit. I promptly went down to the county clerk's office and explained what happened and she kind of rolled her eyes and had me fill out a new amendment form. She must've hand carried it to the judge because I had it in in a couple of days. I later sold the gun.