I was curious if it is possible to shoot the scatter shot from a Blunderbuss on an attack of opportunity. I realize this would require at least snap shot to ever even allow you to make an AoO, but I don't see a reason that this wouldn't be ok as long as the cone includes the target. Thoughts?
If you've loaded it with pellets, nothing in the scatter quality prevents taking AoOs with them. Though, you would probably want to ask your GM about it.