I finally found a used Hoyt holster swivel made in 1984 with "S&W 19" stamped on it. Its for a 4 inch barrel revolver. Prior to buying it I did some research and found the S&W model 66 and model 19 are the same dimensions. Since I own a model 66 I made the purchase. With that said, my model 66 is too big for the Hoyt holster. So now I am confused as to what revolver will fit. Any help would be appreciated