I have owned or currently own a Buckmark camper, Ruger Mark IV, SW victory 22 with a tandemkross trigger, GSG 1911-22, Beretta Neos 6 inch, Grand Power Xcaliber K 22, Chiappa M9-22, Sig Mosquito and a SW Model 41.
Bang for the buck...Buckmark every time. It fits my hand very well, is very accurate and is very reliable if kept clean. The trigger is fantastic. It will cycle very well on decent bulk high velocity. I probably have about 20,000 rounds through mine. The rifling is almost gone but it is still a tack driver and I have yet to replace a single part. Mine is the cheapest version but if i were to do it again I would get one of the mid level trim models although you cannot go wrong with any of them.
Best one, hands down, would be the model 41 as it is near perfection however at 1600$ it isn't a fair comparison to the other candidates....but if you want the best production semi auto target 22, this is the standard.
Honorable mention would be the SW victory and the Ruger Mark IV. I prefer the feel of the buckmark over the victory but overall, it is a very very close second. The Ruger Mark IV is a very high quality piece but I did not like how it felt in my hand and the trigger was garbage when compared to the buckmark and the victory.
I currently own a buckmark, victory, Model 41 and the K22. I sold all the others. The mosquito and the m9 were absolute garbage. The rest were good but not on the same level as the ones i have kept. I have let many people shoot my buckmark (especially youngsters and women) and they all really liked it.