$225.00 sounds more than reasonable for what sounds to be the Standard Model. Is this new or used? The reason I ask, is that Standard models around here usually run about $25.00 nore. I paid around $300 out the door for my Buckmark Plus last December. The Plus is pretty much just a Standard with better grips. Buckmarks are good shooters. Not as durable as a Ruger, but very accurate and comfortable to shoot. The open design of the reciever makes cleaning it easier than cleaning a Ruger. Just be careful of the little pieces parts under the right side grip, and take extra double care not to crossthread or strip the hex screws. The only other area of concern is the tiny recoil retaining clip. Get extras. Like all Brownings I've owned, fit finish and workmanship are top notch.
This part is unconfirmed. I heard a rumor that Browning had problems filling the original contract of Buckmarks and had to get barrels from a custom barrel maker ( I forget the name), way back when they first came out. The early Buckmarks established a reputation for extreme accuracy. Take this info with a grain of salt though. Mine are all more recent vintage and accuracy, while ver, very, very good, isn't any more so than most of my other .22's with the exception of my High Standard.