I have a similar story, without the "thumbs up". My new SRH 454 Casull had large throats (~.455"). Ruger said send it back. They also told me it was unrepairable (never got a sensible explaination why the cylinder only couldn't be replaced vs. the whole revolver). Had to wait an additional month before the production line made a run of SRH 454s to replace mine.
Received the replacement at my LGS (new SN#) & the first thing I did when I opened the box (& before I paid the transfer fee) was to measure the throats with my pin gages. Yep, ~.455" throats, just like the old one they said was defective!
Told the dealer to sell it on consignment as new. Lost money on the consignment fee & my shipping cost to Ruger. Ended up buying a 460 S&W Carry with the proceeds though.
What size was the throats/chambers on your replacement?
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