I've resized bits of the hud down in the lower left side (I might squeeze the artifacts together a bit though). I've also made it so all looted weapons are empty although I am trying to make it so they have one or two rounds in them rather than just none but regardless of whether I work that bit out I think either way is better than every gun being full.
I've made it so the quickslots and artifact belt take up less room but are they too small or bunched up too much?
Not bunched up, but I would want a bit bigger.
With the looted guns maybe 1 gun out of ten has some ammo in it so I'm happy with that.