Go over to Chim's web page. He has everything you need to know for take down and cleaning.
Also, go over to Rimfire Central and check out Rusty22's buck mark take down tool. Do a search in the Browning forum. Really a neat gadget that makes Chim's take down a piece of cake. They are very good pistols, super shooters, and just about bullet proof. It sometimes takes a couple hundred rounds to get broke in. I have found Federal Auto Match to be great ammo. Fed bulk and 510B Lightning are also good, but are above the speed of sound. Auto Match is 1100 or 1080 fps and very accurate in my rifles as well.