Elephant guns have been around since the 19th century, but this hand-held Howitzer takes high caliber rifles to another level.

Introducing the .700 Caliber, “Dinosaur Hunting WTF” rifle.

A member of the Cast Boolits firearms forums posted photos and video of this weapon and cartridges he built from scratch.

Everything you see below is customized craftsmanship, except the barrel.

.700 Caliber Dinosaur Hunting Rifle In Action

The cartridge is named the .700 WTF (“What The F…”)  and was made by “fire-forming a .50 BMG brass case, trimming it to 3 inches in length and then sizing it. The round is loaded with a 1132 grain paper patched .700 lead cast bullet.”

According to Firearm Blog, the rifle has a “16.25″ barrel, can push the 1132 grain of lead up to 2300 fps. Thats 13,000 ft/lbs of energy, right up there with the .50 BMG and far exceeding the .700 Nitro Express. The cast lead bullet has enough energy to pass clean through a 1/4″ steel plate.

.700 Caliber Dinosaur Hunting Rifle In Action

When a Tyrannosaurs Rex rampages through your neighborhood, this would seem to be the perfect tool for the job.

You can watch video of the .700 “WTF” put some rounds down range here, via Youtube:

(h/t the Firearm Blog)