Yes, moon clips for a 627 will work. They come in several thickness. 0.025 is probably the most common, and seem to work fine with Starline brass and commercial loads. The 627 clips have a further variation - lobed center hole or circular (current S&W). I use this tool for both "mooning" and "de-mooning" cartridges.
Deluxe Moon Clip Tool
Another option is a quick loader from
www.5starfirearms.com. They are machined from a block of aluminum, and are a work of art. Their loading blocks and handgun stands are useful too. AFIK, they're the only ones to offer 8 round quick loaders.