Hi,I have a Ruger 10-22 that I want to put a sling on and am a little befuddled about how to install the sling studs on the buttstock.The buttstock is synthetic and is hollow and there appears to be no way to access the rear of the stock to put a piece of wood inside to give the stud something to screw into.I have had some say to just put a regular wood screw stud into the stock and that would hold but I cant for the life of me imagine that would be very sturdy ,it seems like that would hold right up to the point it either pulled out or split the stock and pulled out. I would appreciate your help on this subject. Thanks ,Craig