Everyone knows what im gonna say, so ill say it..
Phillips & Rodgers Medusa M47,
its made with mil spec 4330 modified vanadium steel (the same alloy used in the Gatling gun barrels of F-16 Falcon fighters) and is specially hardened. The Medusa frame is 28 Rockwell and the cylinders are proofed at 86,000 psi per cylinder. Its the strongest gun I know of, and it can shoot over 20 calibers.....
made from 1995 to 2001