Two Bore Rifle

Godzilla Gun: Shooting a 2 Bore Rifle

Velociraptor Gun? T-Rex Gun? How about a Godzilla Gun? 2 Bore rifle.

Conversions:
16 drams = 437.5 grains.
2500 grain = 5.71428571 ounces

I hear it did pretty well with elephants and other dangerous game in Africa in the 19th Century. Yikes!