I just looked to see what else was supposed to fit in a holster made for the Rossi this is what I found:
Astra Double Action Revolvers
Colt Agent, Cobra, Commando, Detective Special, Lawman, DSII & SF-VI
EAA Windicator
H&R 504, 525, 532, 622, 632, 642, 732, 733, 826, 829, 830, 832, 833, 900, 901, 922, 925, 929, 930 and 970
New England Firearms .22 LR and .32 H&R mag
Rossi all double-action revolvers 31, 51, 68, 69, 70, 84, 877, 88, 89, 94, 971, 971VRC, Cyclops, R351, R352, R461 & R462
Ruger Security Six, Service Six, SP-101 & Speed Six
S&W J-Frames with hammer spur and 3" barrel 30, 31, 32, and all K-Frame models 10, 12, 13, 15, 19, 64, 65, 66, 547
Taurus 65, 66,73, 74, 80, 83, 415, 431, 441, 445, 605, 606, 741, 817 and 941
If you go to
Cheaper Than Dirt - America's Ultimate Shooting Sports Discounter and go down a little on the left side there is a "Holster Wizard", I have found it very useful for problems like yours.
Good Luck and Welcome to G&G