IMO, the best way to single feed a Savage is to use the SSS Single Shot follower. Then You could fill the well with lead shot, put a thin layer of Epoxy on top, and bed the action down. It would be removable if You want to use a Magazine later.
Another way to add some weight and stiffness, add the Whidden V Block for the Target Action. The SSS Follower would have to be shaped on the bottom to match the action, to sit flush on the V block.
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