I found this while doing some weight/ volume research. If you are already familiar with this, sorry.
1 hogshead [US] = 315 fifth
1 hogshead [US] = 504 pint [US, liquid]
1 hogshead [US] = 5 376 jigger
1 hogshead [US] = 8 064 shot
1 hogshead [UK] = 378.299 224 935 fifth
1 hogshead [UK] = 504 pint [UK]
1 hogshead [UK] = 6 456.306 772 225 jigger
1 hogshead [UK] = 9 684.460 158 337 shot
Also an interesting wiki on the unit here
http://en.wikipedia.org/wiki/Hogshead
Thinking of the Hogs, enjoy!
1 hogshead [US] = 315 fifth
1 hogshead [US] = 504 pint [US, liquid]
1 hogshead [US] = 5 376 jigger
1 hogshead [US] = 8 064 shot
1 hogshead [UK] = 378.299 224 935 fifth
1 hogshead [UK] = 504 pint [UK]
1 hogshead [UK] = 6 456.306 772 225 jigger
1 hogshead [UK] = 9 684.460 158 337 shot
Also an interesting wiki on the unit here
http://en.wikipedia.org/wiki/Hogshead
Thinking of the Hogs, enjoy!