I've been looking around for a holser for a new-to-me S&W 1006 and haven't had any luck. Would much prefer leather, but anything is better than nothing.....or a ZipLock bag
Also, what is Smith's same size .45? Would a holster for a 45?? fit also?
Leather for a 4506 will work for you as well, since they are the same size. Provided the holster has an open bottom, you could use leather for a 4566 or 1076, you'd just have an inch of barrel sticking out.