I just bought a 223 barrel for my Contender and am building another stock/forearm combo for it. It, naturally, strings shots vertically, but groups are around an inch or so, and I've tried all the rubber washers, resting the gun in a different place on the front bag, blah blah blah. I prefer to bed the forearm. It got me to thinking this RAINY morning.
Has anyone ever tried a nylon tensioning screw under the forearm (near the tip). A cheap thing to try. Obviously, you'd have to torque the 2 forearm screws the SAME each time you remove them. I'm inclined to give it a whirl with one of my old forearms.