Hi Raymondh,
You didnt miss it because there isnt a point for it. Reality tells us that there were only very rare moments when batteries pounding each other into submisson because there were plenty of other targets to hit. The rare occassion when it was decided to silence a battery some french leader used horse artillery to do the job. They used skirmishers and some battallions to keep the battery occupied then they sent one or two horse batteries forward within canister range and they whiped out the gun crews.
Somewhere this was called an Artillery Charge:)
There are some rules which give you the opportunity for counterbattery fire but we play napoleonic and fire roundshots not grenades which detonate at impact! The time for that was not even reached in the ACW.
A battery was often placed on a higher point on the battlefield to be able to pound the enemy without breaks. A roundshot that bounce up a hill looses much of its power and often get stuck before hitting anything. If the battery where placed on the flat ground, i.e., polish artillery men tended to throw earth up in front of their battery position to keep low comming roundshots out.
Lets take into account a battery is a linear target with about 90 - 150 men; they are in a very loose order, part of them running back and forward carrying powder sacks and roundshots from the rear posted train back to the guns. What chance would you think you have to hit them? Maybe with a 8 roundshots you kill 5 or 6 men. The other troops on the battlefield would feel themselve lucky! So as target priority tells you in RtE where you should place your shots first... so dont waste the 3 turns for killing 1 gun against the chance to destroy the spirit of a the charging or advancing unit that cames right against you.
My thougts as a french Marechal
) so this idea is very, very interesting and useful for me.
and one from a (man) fool who read the rules and tries to explain history 
