The title pretty much says it all. I looked around on the forum a bit before posting this but couldn't find someone with a similar situation. It's an unmodified Ruger single six .22LR model number 114371. The hammer won't stick at halfcock for loading/unloading. I'll probably have to take it somewhere to get it fixed (as opposed to doing it myself) but it still would be nice to know what's causing this to happen (or not happen as is the case). Thanks in advance for any help!