This is a "[Fulmin Prime]" build that has worked for me since I got it. The important things to talk about are "Galvanized Aptitude" and "Galvanized Chamber". Chamber gives us more multi-shot and aptitude makes our shots deal more status. Overall, a 49 status chance per projectile is good enough to inflict status in most shots. You can swap "[Primed Cryo Rounds]" for "[Rime Rounds]" so you get more status chance but I like to go for pure cold damage. With "[Internal Bleeding]", the Impact status proc also deals slash (OP Status Effect) so we can [Shred] enemies. Overall It is a really good build and It has allowed me to get to level cap with this gun.