95 caliber rifle.
This is the beast it shoots - the .950 JDJ
The .950 JDJ has become something of an internet legend, and is frequently cited as an example of a "ridiculously large" cartridge, thanks to its overwhelming ballistic figures. The cartridge drives its aforementioned 3,600 gr (230 g) bullet at approximately 2,200 ft/s (670 m/s). This yields a muzzle energy of 38,685 ft·lbf (52,450 J).
Even the recoil junkie in me cringes at the thought of lighting one of those suckers off. The rifle is 85 pounds and STILL kicks like a mule.
Hat Tip Ry