To answer your question, a .38 S&W barrel will work. For casual use, their grouping capability is generally OK, even with .357 bullets. For many years I reloaded .38 S&W cartridges using .357-.358" diameter lead bullets, and they shot fine in all of my .38 S&W revolvers. Also, .38 hollow-base wadcutter bullets will always be excellent performers in larger diameter bores. But finding a .38 Special replacement barrel is the preferred strategy. Keep in mind that swapping a barrel yourself is not as simple as it may seem if you do not have experience in properly fitting them and lack the correct tools. It's not too difficult to irreparably bend a frame.