I have a weird one...
I was given a Mossberg 340KC by a friend for helping him move. Mossberg only made the rifle for 3 years back in the late 50s. I don't know how long the barrel is, but it's at least 22", maybe 24", and a lot longer than on most bolt-action .22s I've seen. The action is a bit clunky and the stock sights are cheap, but this rifle is very accurate! I have a cheap Redfield scope on it for now, but regular rings don't have a lot of space to grab the receiver, and I have to slide the scope as far back in the rings as I can to get proper eye relief. Due to the long barrel this rifle is pretty quiet, especially so with subsonic loads. Aguila's 60gr. SSS round isn't the most accurate round due to needing a tighter twist, but the rifle is air-rifle quiet when shooting them.
My friend who gave it to me found the rifle in a closet in a room he never went in, and couldn't remember where it had come from. From its appearance it had been there for quite a few years, and I was glad to have it. He also filled up my car with gas and bought me a case of Rolling Rock, so it was a great day all around!