Ok, so I’ve been thinking a lot about the optional rules I use for firearms, and I’ve decided to change them for a couple of reasons.
1) It’s hard for me sometimes to properly figure out what a monster’s AC vs. firearms should be.
2) I’ve read some things that indicate that historically, it wasn’t guns but the crossbow that really lead to the downfall of heavy armor. Since there are no special AC rules for crossbows, there probably shouldn’t be for guns.
So I’m going to drop the special AC versus guns rule. Now you’ll get your regular AC versus firearms. That being said, I think firearms as written are still a little weak for my taste, so we’re going to try a different, much easier to remember optional rule.
When a character rolls damage for a firearm, any damage dice that come up as a 1 are added and then re-rolled. Say you are shooting a gun that does 2d6. You roll a 1 and a 5. You take those 6 points of damage, and roll the die that came up a 1 again, adding the new result. So if it comes up a 3, you do 9 point of damage. If it comes up a 1 again, you’ve got 7 points of damage and continue re-rolling the die.
Easier to keep track of, still pretty deadly.