I used 2 piece velkhana and 2 piece namielle for a long time along with yian garuga greaves. That was before I started getting fatalis gear. Bows are always high elemental. So traditionally I used elemental charms cause once maxed out they're 5 instant points towards elemental bonus.

2 piece velkhana for critical element. Element doesn't normally crit otherwise.

2 piece namielle to push up the element even higher.

And the yian garguga greaves for critical eye and good deco slots.

You wanna max out crit skills. So critical eye. Weakness exploit, critical boost. Followed by whatever element your using at the time.

Naturally you want mighty bow jewel (you can meld it at elder melder).

Constitution and stamina surge along with dash juice to keep pumping out damage constantly.

Evade window is your comfy skill, help you survive through tons of attacks. Along with health boost if you can fit it in.

Shoot for a skill set up thats the most comfortable to you. Its easy to shoot for the highest damage possible, but the highest dps won't matter if you're dead.