4. As mortars/howitzers have an explosive or incendiary shell, they inflict the same amount of damage regardless of range. These weapons therefore have the same number of attacks at all ranges as shown in their profile. This is normally 2 for a smoothbore field howitzer. (p.81)
A sensible seeming rule, but I can't find any 'profile' for howitzers in the rules. The only stats example that has howitzers (p.169) keeps standard gun stats of 3-2-1. I presume the above rule means that BP would give pure howitzers stats of 0-2-2, whilst my comments under 1 above would mean you should really use 3-2-2. However, this raises the question of why all guns in a SYW army weren't howitzers, if they were so effective. Well, Frederick II for one was pretty keen on them, but the point remains. Therefore it might be better to leave howitzer stats at 3-2-1, reasoning that it was much more difficult to hit at long range and that therefore casualties caused at long range would be less, as with guns but for slightly different reasons.