| Adder007USA |
My first question there would be, to what purpose?
If you're aiming for a weapon, that's going to be a sunder or disarm, depending on if you want to break it or drop it, respectively. Sunder can also be used to break other accessible gear.
There is currently nothing in regards to called shots that target specific organs or body parts. If you recall, that was a variant ruleset in pathfinder, not part of the core rules.
| Master Han Del of the Web |
| Metaphysician |
Rule 0. There's no formal rules for targeting specific locations in battle, so its a situation specific circumstance, thus a situation specific difficulty.
I seriously doubt any "target specific body part for extra damage" rule will be introduced, though. Not with the Weapon Specialization rules pretty much incorporating most of that concept ( using skill to do extra damage ).