I thought I would put this out there as an informational bulletin. Never know when some one might ask. I bought one of the newer Ruger SP101 .327 4" revolvers after they were introduced but could never find a proper holster for it. I tend to lean towards Fobus paddle holsters and they didn't offer one. As a matter of fact, it seemed that no one offered a holster for the 4" Ruger.
I did some research on the webs, and decided to order the Fobus SW4 which is engineered for S&W L+K frames. It will also fit some Taurus models. It arrived and the pistol actually did fit, but there was a tiny bit of rattle. I had some cotton wick from a kerosene lantern lying around, so I cut a piece to length and placed it in the bottom trough of the holster. After that, the pistol was nice and snug. I tacked it with a bit of glue and it seems to be holding. Don't know if this will work for the 4" 22 or 357, but I suspect it might.
I did some research on the webs, and decided to order the Fobus SW4 which is engineered for S&W L+K frames. It will also fit some Taurus models. It arrived and the pistol actually did fit, but there was a tiny bit of rattle. I had some cotton wick from a kerosene lantern lying around, so I cut a piece to length and placed it in the bottom trough of the holster. After that, the pistol was nice and snug. I tacked it with a bit of glue and it seems to be holding. Don't know if this will work for the 4" 22 or 357, but I suspect it might.