Or you could just use combo and do more damage while using them all lol. In my experience damage wise it's:
Arrow Rain>Bullseye>Moeba Shot>Power Shot. I don't now Paralyze Shot yet as I haven't maxed it yet and I still use a 4 hit combo instead of 5. Arrow Rain does have the negative of needing the boss/mob to stay still.
For Equips:
Forest Wolf Bow, Sword Bowgun, and Short Musket(something like this name, this is only for leveling combos) for weapon
Wind Slash Arrow as offhand for non-earth element enemies, Fire Arrow for Earth Element monsters
Forest Wolf Garb remodeled to light armor is best for the ASPD. The dropped version not the crafted one
Cape(Max MP+50, ASPD+100), Brutal Dragon Crown(Atk MP Rec+3, +5 ATK), and Dawn Hat crimsosh version(ATK MP Rec+2, Evasion+5%)
Sofys Talisman or w/e the DEX Special Equips name is
You can level up the Shot Tree at level 25 or higher, it comes after Bullseye.
Skills in Shot Tree to level in order:
Power Shot(for reduced charge time)>Moeba Shot>Bullseye>Arrow Rain>Paralyze Shot.
Other stuff to get: HP increase to level 5 or higher from the Survival Skill Tree. If you play Archer right you will steal hate from all the damage you will be doing haha. Either way it's nice not to immediately die if something looks at you.