I would imagine something like 2d10 (or possibly 2d12, depending on how devastating you want to model it), with an 80 foot range increment. One question I'd have is: how much energy is transferred to the target with a .600 H&H verus say a Barret light Fifty? The .50 round is a smaller profile round, but more aerodynamic.I've never seen an actual .600 round, but I've imagined them to be basically hopped-up shotgun slugs.

EDIT - more info on the .600:

http://members.ozemail.com.au/~mickay/nitro.htm

Most interesting points:

The .460 weatherby magnum now holds the record for "most energy per round" at 8,245 foot pounds. The .600 nitro clocked in at a, ahem, respectable 7,591 fp. :D

I am mistaken on the "shotgun slug" idea - it's a true cartridge, and a 900 grain one at that. The rifle weighs around 16 pounds.

Bullet Weight; 900 grains

Muzzle Velocity; 1950 fps, Energy; 7591 ft/lbs

@50 yards

Velocity; 1794 fps, Energy; 6427 ft/lbs, Time of Flt; .08 sec

@100 yards

Velocity; 1646 fps, Energy; 5413 ft/lbs, Time of Flt; .17 sec

Anybody want to use Wulf Ratbane's Grim Tales rules to calculate expected damage off these figures? :) I'm afraid my copy is at home.

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