I am having a problem with a Ruger Mark III (678) target pistol. I received it new in the box as a birthday present (woot!) this week so I wanted to clean it before I went to the range. Two hours later I finally got it disassembled, cleaned, and reassembled. I can't believe a rubber mallett is required to do this!
After assembling the pistol while carefully following the directions, the hammer will not stay cocked. The bolt retracts and locks properly. However, when it travels forward it sounds like the hammer immediately falls. I've taken it apart and put it back together several times with the same result. I'm pretty sure that I've properly placed the hammer strut but who knows. I haven't even fired it yet!!!
Any advice would be helpful.