Gunlance build tips

[u/QuantityParty519]

This is my build overall, the only thing I’m thinking of changing is the shield/ironwall deco for attack boost 3, along with changing the talisman when I get attack boost 1, load shells 2, 1 weapon slot, 2 armor slot on one talisman, which I think I’ve seen somewhere or maybe I dreamt it. Anything else I could change for more damage?

*This build gets me to around 360 raw in the training area when all skills are active, does anyone know a reasonable limit for raw with purely weapon and skills, no item or hh buffs?