I picked up my superblackhawk the other day and was going to strip it down to clean the gripframe out. (new gun don't trust Ruger to get out all the machining gunk) First thing I noticed was that ALL the screws were loose, not even finger tight. Following the instructions in the manual, things went well untill one screw would not come out. If you hold the revolver upside down with the barrel facing away, the right screw behind the trigger guard will loosen about 1/4 turn, then binds up. Unless I am mistaken this is the long screw that anchors the hammer pin? I put all the other screws in snugly, then tried again, no dice. So I stopped there, and replaced all the screws, since I don't want to strip/break/bugger the screw. Am I missing some part of the disassembly process?