Gun company displays largest-caliber rifle ever created with bullets that cost $40 a piece The .905-caliber rifle fires rounds about 2,100 feet per second [*]The gun also has 2,777 foot-pounds of recoil energy, which essentially makes it as powerful - and gives it about as much 'kick' - as firing 10 .30-6 rifles at the same time. The company has only produced three of the uber-powerful rifles If you want to squeeze off a few rounds from a .905-caliber rifle, you'll need two things: muscles and cash. An Ohio-based gun company has developed the world's first .905-caliber rifle that - at .905 - is the highest-caliber rifle in the world. And with bullets that cost more than $40 a piece, you'll probably think twice before pulling the trigger. http://www.dailymail.co.uk/news/art...iber-rifle-created-bullets-cost-40-piece.html makes my shoulder ache watching the video.