Take the screws out to nearly their full length, a couple of turns should be enough to hold. Turn the rifle upside down and whack it a bit with a bubber mallet. You may want to let the rifle spend the night in a deep freeze(food freezer). The differential shrinkage in the metal and wood should make any bond very fragile.. The stock of the inverted rifle is held in the left hand and the rifle may be suspended over a soft service if you're worried about dropping it.. a bed would work.. Remove the magazine first.. and close the floorplate... It's just bedded a bit tight,.,