[@Turboshitter] Slightly late but, I've been giving that buff for Archer some thought and I've got a pitch for you: 
Increasing the strength of Legacy of Gerard, as MeteorD suggested. I was thinking of knocking it up to around C to C+, where the shots are magically augmented with an armor piercing quality. I figure, the range should stay as is because it's a wheellock carbine so range would defeat the point of it, and endurance and agility are lit as is.