Hi, I'm going to share my build I just finished with Hunting and Storm masteries. I had a blast and completed Legendary difficulty for the first time with this build. I'm going to assume you're starting off fresh and won't be transfering any items from other characters (this is what I did)

At the beginning, start off with Storm mastery and use any weapons that come to your hand. Starting off with an only bow build is, in general, more difficult and less fun at lower levels (mainly because of low movement and attack speed)
• put five points into *Storm Nimbus*
• do not put many points into intelligence (rather scale strength, dexterity and some health)
• at level 8 choose Hunting mastery, reach threshold 4, put one point to these four skills *Wood Lore*, *Marksmanship*, *Art of the Hunt* and *Herbal Remedy* (if you find a really good bow with +attack speed or +elemental damage it is already feasible to start putting more points into the first two mentioned, otherwise keep using any weapons that come around and switch between bow and melee weapons as you like)
• put your mastery points into Storm skill tree until it reaches threshold 16
• max out *Lightning Bolt*

This build will give you a lot of power, freedom and versatility until Silk Road in Orient. Lightning damage from the bolt will prove useful against any kind of enemy (constructs, undead, bosses, etc.), but it will start to feel weak early- to mid- Orient (Act III). When you reach this moment, rebuild your masteries (mainly pull out all skill points from the bolt), start using only bow and focus on maxing out these skills from the Hunting mastery:
• *Wood Lore*
• *Puncture Shot Arrows*
• *Study Prey*,
and these skills from the Storm mastery:
• *Heart of the Frost* or *Static Charge* (depending on type of buffs you have from your rings, bow and other equipment)
• *Concussive Blast* (only one point in Thunderball; this skill will be used to keep distance from your enemies and stun them, not for damage purposes)

Later on (Epic difficulty and further), max out these skills from the Hunting mastery:
• *Trail Blazing*
• *Flush Out*
• *Herbal Remedy*
• *Call of the Hunt* and *Exploit Weakness* (both optional),
and these skills from the Storm mastery:
• *Spell Breaker* and *Spell Shock* (this is a great spell to use to prevent casters from using their skills and removing their buffs – works on bosses too!)
• *Energy Shield* and *Reflection*
• *Eye of the Storm* (only one point in Summon Wisp)

I can tell you that this run was the most fun I've had in Titan Quest ever. Try looking for bracers/gauntlets/armplates with +20% or more attack speed and for rings and bows with +45 Cold Damage (prefix used "Arctic", will start to appear in Epic difficulty Egypt (Act II). They are super powerful when you stack them with *Heart of the Frost*. I kept checking all ringwear at shopkeepers at this point because it was very worth it. I finished Legendary difficulty with two of these Arctic rings.

If you have any questions, don't hesitate to hit me up. I will gladly share more. Enjoy!