The next one pictured has a little bigger posterior than the S&W .357 Magnum above. It's a custom Marlin 1895 Alaska Guide Gun in .457 Magnum (45/70 on steroids) by Wild West Guns in Anchorage. To be safe, the only time I shoot it is right before a scheduled visit to the Dentist - Crown that loose filling!
Glad I didn't order it in .50 Alaskan caliber!!!