First of all this is my second ruger standard that I have had for several years. SS model target barrel. I have always with trepidation and fear taken these apart to clean and resulting frustration has resulted in my choosing other guns to shoot. Well I got the urge to shoot it and again took it down for cleaning. Came apart great. Bolt disassembled, barrel assembly removed from frame, etc,etc. After much effort (again) got it back together. Now bolt only pulls back about half way. Disassembled again, reassemble, same. Went thru this three times with same results. Watched YouTube videos till I'm blue in the face. Still no luck. WHY do I still own these guns when I can complete disassemble glock, 1911, sig and reassemble with no trouble (not to mention shotguns). I must like pain.... So any ideas? What am I missing?