In the mid 90's I bought a used Red Lable. A very early blue steel receiver 26" Skeet 12 gauge, It had Briley Thin Wall Choke Tubes installed. My brother bought it for $250 and shot Sporting Clays for 2 or 3 months, I bought it for $275 and shot Sporting Clays for 1.5 months and sold it to an LGS for $400, it is still floating around Central Ohio!
The problem we experienced with it was it was "Butt Heavy" and just didn't follow through and hard crossing shots. If we had been in the Skeet sport it was a great gun. We estimated it had half a million rounds when I sold it!
Red Labels pivot on trunnions like a Berretta, but they are cast in the receiver instead of replaceable (like a Berretta). An old Red Label's lock-up is dependent on how well the various owners kept the trunnions greased! (something to look at on old Ruger shotguns!)
Ivan
BTW, I know of 3 older (1950's) Berretta SO (S= Side Lock O = Over/Under) shotguns with well over 1 million shots through them! If Berretta made a gun with their name on it, They WILL fix anything wrong or broken, JUST NOT FOR FREE!