Don't know about any breakage problems. Mine is a 22S, and Iv'e shot it a lot useing ammo from bulk pack to match and other than an occasional dud from the cheap ammo it has been very reliable. No bad habits at all. My buddy has a couple also, and he is the type that gets rid of a firearm that has even the slightest hiccup. The only thing I would change is the S model has some type of coating over the steel that I managed to soften up with aerosol cleaner spray, and when I wiped it off right away there must have been some crud on the rag, and the coating dulled a little. We got rid of our Buckmarks after getting these S+W, and the S+W will shoot right along with our high dollar pistols.