R8
8 in. Revolver (.38/.357/.41/.44) Fits most 8 inch medium- and large-frame revolvers including:

Astra All Double Action
Colt Anaconda, New Service, Python, Trooper
Dan Wesson Model 8-2, 9-2, 14-2, 15-2, 22
EAA Windicator, Windicator Target
H&R All Double Action including: Models 586, 649, 650, 686
High Standard Crusader
Iver Johnson Model 55, 57, 66, 67, Trailsman, Sidewinder, Sportsman
Llama Super Comanche
Rossi All Double Action
Ruger Blackhawk, Super Blackhawk, Redhawk, Super Redhawk
Smith & Wesson All K-, L-, and N-Frames including: Model 14, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29, 48, 53, 57, 586, 629, 657, 686
Taurus All .44 Magnum