Item
Proton M
Projectile Ammo · Charge · Medium
Market prices for Proton MBuild it: materials and costEverything in Projectile Ammo
What the game says about it
Attributes
The same numbers the game shows in Show Info.
Turrets
EM damage6 HP
Kinetic damage4 HP
Miscellaneous
Charge sizemedium
Tech Level1
Used with (Launcher Group)Projectile WeaponSee all 45 weapons that fire it
EW - Tracking Disruption
Tracking Speed Multiplier1.05 x
Weapons that fire Proton M
45 weapons take this charge - in its size only.
Tech I 25
220mm Medium 'Scout' Autocannon IProjectile Weapon
220mm Medium Carbine Repeating Cannon IProjectile Weapon
220mm Medium Gallium Machine GunProjectile Weapon
220mm Medium Prototype Automatic CannonProjectile Weapon
220mm Vulcan AutoCannon IProjectile Weapon
425mm AutoCannon IProjectile Weapon
425mm Medium 'Scout' Autocannon IProjectile Weapon
425mm Medium Carbine Repeating Cannon IProjectile Weapon
425mm Medium Gallium Machine GunProjectile Weapon
425mm Medium Prototype Automatic CannonProjectile Weapon
650mm Artillery Cannon IProjectile Weapon
650mm Medium 'Scout' Artillery IProjectile Weapon
650mm Medium Carbine Howitzer IProjectile Weapon
650mm Medium Gallium CannonProjectile Weapon
650mm Medium Prototype Siege CannonProjectile Weapon
720mm 'Scout' Artillery IProjectile Weapon
720mm Carbine Howitzer IProjectile Weapon
720mm Gallium CannonProjectile Weapon
720mm Howitzer Artillery IProjectile Weapon
720mm Prototype Siege CannonProjectile Weapon
Dual 180mm 'Scout' Autocannon IProjectile Weapon
Dual 180mm AutoCannon IProjectile Weapon
Dual 180mm Carbine Repeating Cannon IProjectile Weapon
Dual 180mm Gallium Machine GunProjectile Weapon
Dual 180mm Prototype Automatic CannonProjectile Weapon
Tech II 6
Faction 10
Domination 220mm AutocannonProjectile Weapon
Domination 425mm AutocannonProjectile Weapon
Domination 650mm ArtilleryProjectile Weapon
Domination 720mm Howitzer ArtilleryProjectile Weapon
Domination Dual 180mm AutocannonProjectile Weapon
Republic Fleet 220mm AutocannonProjectile Weapon
Republic Fleet 425mm AutocannonProjectile Weapon
Republic Fleet 650mm ArtilleryProjectile Weapon
Republic Fleet 720mm Howitzer ArtilleryProjectile Weapon
Republic Fleet Dual 180mm AutocannonProjectile Weapon
Storyline 3
Officer 1
Variations
The whole Proton M family, as the game's Variations tab lists it - by tier and meta level.
Tech I 1
Proton M
Faction 3
What Proton M is built from
Manufacturing from 
Tritanium
PyeriteProton M in EVE Online
This page is the dictionary entry: what the item is, what it weighs, how much room it takes in a hold and - when a blueprint exists - what goes into making one. The numbers come from the game's own data, so they change when CCP patches the game and not before.
Prices are deliberately somewhere else. What something costs is a question about one item in one place at one moment, and its market page answers it properly: best sell, best buy and every order we have stored, region by region.