Ping pong balls for the win. Once you've wrestled everything else in life is easy. Dan Gable I keep my circle small, I’d rather have 4 quarters than 100 pennies.
I installed a Simmons one piece base with their unusual ring mounting system on my Model 600. The rings slip over posts that are inserted up from the bottom of the base and are retained with Allen screws. Makes for a setup with less protuberances over the loading port area. It is about as clean as a Leupold Dual Dovetail mount. Scope is a Bushnell 1.5x4, caliber is .308. The bottom metal is a Neil Jones aluminum one piece TG/floorplate. The Simmons may be long discontinued, I set it up that way back in the 1980's. Perhaps it can be found at a gun show or on ebay.
I use several different mounts but all are using one screw on the back. Be well, Rustyzipper.
Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy. Its inherent virtue is the equal sharing of misery. Winston Churchill.