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Damage ModelNotes
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Total Damage
Round(Physical Damage) + Round(Elemental Damage)
Elemental Attack Up
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Physical Damage
Round(Physical Attack x Affinity x Critical Distance x Rapid Fire x Motion Value x Hit Zone)
I have no idea how Elemental Attack Up skills work, other than they arent consistent between guns
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Physical Attack
Round((Weapon Raw x Normal Up x Pierce Up x Spread Up x Elementless) + Attack Up)
For example, a 170 Raw + 30 FIre Atk damage !== 200 Raw Atk damage
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Elemental Damage
Round(Elemental Attack x Affinity x Rapid Fire x Motion Value x Elemental Hit Zone)
My best guess is that either my damage formula for elemental damage is 100% wrong, or this
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Elemental Attack
Round(Weapon Raw + Attack Up + Elemental Attack Up?)
has something to do wtih the Elemental Caps, and how effective the skill is is based off the raw
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Skills
Unfortunately I dont think theres a wide enough range of bowguns with true damage to suss that out
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Affinity
1.25 for Physical, 1.3 for Elemental w/ Crit Ele
For those min/maxing, you only need 3 to hit the cap and with end game guns its ~5 damage (2 = ~4)
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Critical Boost only increases Physical
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Critical Distance
1.0 (in range), 0.8 (too close), 0.1 (too far)
Slicing Ammo Decimal
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Rapid Fire
1 if first bullet, 0.5 for additional
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Normal/Pierce/Spread Up1.1
The only way slicing ammo fit into this equation was with a fractional Motion Value
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Elementles1.1
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Only applies to guns unable to fire elemental bullets, including dragon. Changes display raw
This may mean that the "real" underlying equation is different, or that theres some multiplier
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Attack Up
Any additive attack increase (Atk Up, Agitator, etc)
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Elemental Attack Up?
I have no idea how this works, other than its not the 30/60/100 the skill displays.
Effectively though this MV is accurate for estimating damage, so I went with it
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Motion ValuesMotion Values (MHGen)Estimated MV (1.5 CD)Estimated MV (1.0 CD)
Comparison With Gen
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Normal Ammo 110Normal Ammo 111.77.8
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Normal Ammo 220Normal Ammo 223.418
Based off of this post I wanted to compare MVs from Gen (https://www.reddit.com/r/MonsterHunter/comments/4yzlw5/mhgen_bowgun_ammo_guide/)
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Normal Ammo 332Normal Ammo 319.5 x (1-4)13 x (1 - 4)
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Pierce Ammo 17Pierce Ammo 117.5511.7
However the equation was a bit different in gen so the MVs aren't directly comparable, we have to include
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Pierce Ammo 27Pierce Ammo 213.659.1
the 1.3x multiplier gen does, and consider the 1.5x Critical Distance, so this table has 2 columns
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Pierce Ammo 38Pierce Ammo 313.659.1
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Spread Ammo 16Spread Ammo 15.853.9
The first is the calculated MV with the 1.3x multiplier and 1.5 CD, the second is assuming 1.0 CD
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Spread Ammo 27Spread Ammo 27.85.2
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Spread Ammo 38Spread Ammo 39.757.5
N.B. These values are based off my understanding of the MHGen damage formula but may
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Elemental Ammo5 Physical + 27 ElementalElemental Ammo7 Physical + 45 Element7 Physical + 45 Element
not be accurate to reality, I present them as a though experiment, dont get hot about em
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Dragon Ammo2 Physical + 18 ElementalDragon Ammo1 Physical + 40 Element1 Physical + 40 Element
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Slicing Ammo6.3 x 5Slicing Ammo8 x 38 x 3
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