I had an early SRH in 480 and the cases would stick in the chambers. I traded it on a 454.
I then purchased another SRH in 480, this time the 9.5” barrel and had sticking cases again. I had the chambers polished which helped but soon traded it on another 454
I was told the 5 shot cylinders are better than 6 for 480 when shooting a Ruger
From what I can gather from pretty reliable sources, only 23 5-shot cylinder .480s made it down the assembly line and all of them were Alaskans. I don’t think there is enough testing that has been done, if any, to substantiate that claim. I know the machining of those cylinders was often on the shoddy side and I also believe that some of the early production ammo was a bit too high in the pressure department all contributing to sticky extraction. A number of years ago I got the first production 6-shot SRH after the .480 hiatus, and it had no issues. Ruger claimed they changed the chamber dimensions...
