232R. Great Western Arms Co. – Mod. Frontier – 357 Atomic Cal. Single Action Revolver – w/5½” Barrel w/Blade Front and Rear Notch Sights – Blued/Case Hardened Finish – w/Smooth Wood Grips – Advertised as the Most Powerful Handgun of its Time Shooting 357 Atomic at 1600 FPS – The 357 Atomic was Developed by Bill Wilson Who was the Founder of Great Western Arms Co., Due to the Pressures this Cartridge Produced, it was Manufactured for Approximately Only 2 Years!