Originally Posted By: RowdyRawhide Wiggling the action in a bolt gun and a sloppy upper/lower fit are comparing apples and bananas. The forearm (assuming it a free floating forearm) is attached to the upper (with the barrel) not attached the the butt stock separate from the barrel. When you address the AR and you provide your cheek weld and shoulder fit you "tighten" the wiggle, the only way you could do that to a bolt gun with a "loose action" would be to rest barrel instead of the forearm of the rifle.
So you're making this conclusion on the assumption that the off hand is providing sufficient tension to completely remove any movement of the upper due to recoil?
Ok.
Cheek weld and shoulder fit have nothing to do with the upper. All of this magic torque come from your off hand and you're going to have to be Chuck Norris to defeat 100% of recoil with a one handed grip on the fore end.
Even if you shoot prone from a bipod and load it properly, there is very little chance your support will consistently prevent the upper from moving with recoil.
