The Safariland® Comp I is the easiest speedloader to use (and conceal). While they don't list the Taurus 85 as being compatible with the J-C7, they work fine with ours. As far as we know, the J-C7 works with the guns listed below. Your mileage may vary; sometimes custom grips may be necessary to facilitate the speedloader. It's well worth the money as the Comp I takes the "fine motor skills" requirement out of revolver reloads.
Charter Arms
5-shot .38 special
S&W
5-shot .38 Special J-Frame
M60 .357 Magnum
Taurus
Model 85 5-shot .38 Special