Mouse right button hard bound on ranged 2 handed

[ornate reef]

I'm a lefty and I remap most of my buttons like my mouse buttons to forward/backwards and my fire/aim to keypad. This works fine for all weapons but ranged 2 handed weapons like the blunderbuss and musket. The right button is hard bound to aim. It is not hard bound on pistol or single/2 handed melee weapons.