Grenadier Blunderbuss

[KainMalice]

So, my friends and I are playing Skull and Shackles. I am playing a Gunslinger, and recently picked up Leadership and took Mardus Siggs as my cohort. I am currently trying to build him into an alchemist to maybe provide some AOE damage, and cover if necessary since I am a Musket Master. I found the Grenadier Archtype which seems perfect for what I am trying to do with him. I was going to pick up an Blunderbuss soon and give it to him, and then noticed the Alchemical Weapon thing. Can anyone think of any reason as to why I couldnt use that along with the Scatter Shot?

[The 8th Dwarf]

I am currently playing a grenadier pistolero 4/4 I used alchemical weapon on a dragon pistol, ruled that only one target was affected by the acid/alchemists fire.

Explosive missile and alchemical weapon are stackable.