I had years of good shooting with a ruger bearcat sa revolver before I eventually purchased a ruger mkI pistol. I have had several 22 pistols and revolvers over the years. Ive had a great time with both sa, da and semi autos. The ruger mkIII I have now is a great gun for target or plinking. I have a 5.5 bull barrel version and feel its got the best balance for rapid fire shooting. I havnt tried the browning buckmark 22 but have also heard its a great gun. There are allot of great ones. The $300 limit might be hard to reach even with the ruger these days. If you've a mind for a single action style a Ruger single six would also be a great choice and ammo will go farther. lol.