Umm.. idk how calculations go in your head, I usually count pride weps with their base and I got:
Trivia bow - 13% assault
2x FLB Apo lance - 2x21% assault
3x FLB UE axe - 3x15% assault
FLB UE hammer - 21% assault
Bunny girl gun - 13% assault
Himeless bow - 16% assault
That seems 150% assault to me. But since you got "120-130%" by your statement, I doubt you calculate the same way as I do.