I've been a Bow user ever since MHFU and I'm very happy on how the Bow has evolved throughout the series. It is a versatile ranged weapon that you can use it solely by only relying on raw or you can mix and change your play-style to a status specialist and cripple the monster with poison and paralyze. If you haven't tried it, you're missing on a simple yet fun and entertaining to use weapon.
The Power Shot was only a dream to us Bow users back in MHFU/MH3G, we've always dreamt that it would have something like a quick shot and now it has graced us with its awesomeness and finesse.
Okay guys to make thing really simple, the Power Shot doubles your damage but not just damage, it also doubles the efficiency of inducing status and elemental damage. It also makes using the level 4 charge of the Bow more viable because of its rapid succession.
Here is a simple calculation of what the Kama Sedition, one of the most powerful craftable bows, can do.
I'll be using my mixed armor set for Bows which has the following skills:
Ruthlessness
Load Up
Normal Up
Focus
Attack Up M
A honed Kama Sedition has 408 attack on display or 340 true attack. Let's say I also have the Power Charm/Talons in my inventory that adds 15 true attack and I ate for Felyne Attack Up L which increases base damage by 7 and lastly the armor skill Attack Up M which adds another 15 points of base damage.
So in total I have 377 of true attack power and while on quest I took a Might Seed which bumps it up to 387.
We'll be using Shagaru Magala's head which has a hitzone of 0.60 (or 0.65 with Weakness Exploit) and we'll assume that he's at level 140 so that we have a defense modifier of 0.65.
(Raw Attack) x (Optimal Distance) x (Charge Level) x (Power/Close Range Coating) x (Critical) x (Normal Up Bonus) x (Motion Value) x (Defense Modifier) x (Hitzone) = Damage
So it'll be..
387 x 1.5 x 1.5 x 1.5 x 1.25 x 1.1 x 0.22 x 0.65 x 0.65 = 166.9 or 170
But wait! the Kama Sedition is capable of doing a Power Shot! So it does a total of 340!
If you're good at sniping monster weak points with the Kama Sedition you'll have no problem at all! It just needs a lot of practice like all the other weapons.
I also said in a previous statement above that level 4 charge shots will do massive damage with the Power Shot because level 4 charge shots have a charge level modifier of 1.7 whilst level 3 charges only have 1.5, elemental damage also scales with the charge! The only draw back to doing level 4 charges all the time is that it takes too long and easily depletes your stamina at the same time.
But nonetheless Power Shot Bows have ridiculous damage output! I've seen MH4G solo players that makes minced meat out of level 140 monsters with the proper skill setup! The Bow could be one of the hardest weapons to master but it is also one of the most rewarding.
More power to the Bow! Happy hunting!