Bow View, I'm not the final word ... but no.
(Dang it. I'd love to shoot mine, too!)
Last I heard, it has to be pre 1900, EXCLUDING '98 Mausers. Now, I'm not 100% sure about Wild Bunch matters - I think it (supposedly) takes place 1911-1913 or so. Which allows 1911 Colts and P08s. (IF you can get your P08 to feed lead ammo, that is.)