Knight Rifles put together one of only 3 guns this big ever made. It is called a .950 JDJ and some of the numbers that go along with this center-fire rifle are just unbelievable. The bullet used is a 2400 grain projectile pushed by 240 grains of powder sailing through the air at about 2100 feet per second. 25,400 ft lbs of muzzle energy produces 277 ft lbs of recoil which would be like shooting 10, 30.06's at the same time, Your shoulder would never be the same. That bullet costs about $40 each.

Here is a look at what it takes to shoot something like this,