Heavy Caliber

is a mod that increases damage of Primary Weapons (excluding Shotguns) at the cost of increased spread (reducing accuracy). Some weapons will have additional spread added, in addition to the base amount.
==Stats==
Rank	Damage	Spread	Cost
0 	+15% 	+0.27 	6
1 	+30% 	+0.54 	7
2 	+45% 	+0.81 	8
3 	+60% 	+1.08 	9
4 	+75% 	+1.35 	10
5 	+90% 	+1.62 	11
6 	+105% 	+1.89 	12
7 	+120% 	+2.16 	13
8 	+135% 	+2.43 	14
9 	+150% 	+2.70 	15
10 	+165% 	+2.97 	16
 Additional Spread Modifiers
Weapon	Rank 0 Additional Spread	Rank 10 Additional Spread
() 	+0.9 	+9.9
() 	+1 	+11
() 	+0.27 	+2.97
 	+1.5 	+16.5
 	+1.36 	+14.96
() 	+5 	+55
() 	+1.75 	+19.25
 	+0.36 	+3.96
 	+3 	+33
==Drop Locations==
==Notes==
*Instead of reducing the accuracy by 5% per rank, each rank increases spread by a specific value per rank depending on the weapon.
*Damage bonus stacks additively with similar mods, such as .
**Since the two stack additively and Heavy Caliber costs 2 more mod capacity for the same bonus, combining the two is slightly less efficient in terms of damage per capacity cost. Maxed Serration grants +11.79% bonus damage per 1 mod capacity, while maxed Heavy Caliber grants +10.31% bonus damage per mod capacity. Combining the two, Serration and Heavy Caliber grant +11% bonus damage per 1 mod capacity, which is +0.79% less bonus damage per capacity than Serration alone.
*Added spread is not affected by bonuses that increase accuracy, such as or .
**For example, a with and will have a max deviation of degrees.
*Causes beam of all continuous weapons to noticeably wobble.
==Trivia==
*When it was first released, Heavy Caliber's original penalty was an increase in recoil as well as damage. However the recoil penalty did not affect recoil-less weapons (, , , bows and among others), effectively acting as another instance of . This was confirmed to be unintentional in Warframe Prime Time - Episode 2 (9:40). The mod's penalty was changed in .
==Gallery==
HeavyCaliberOld.png|Mod's effects prior to Update 10.4
ModHeavyCaliber.png|Mod's appearance prior to Update 14
==See Also==
* , the secondary equivalent.
*, the shotgun equivalent.
==Media==
Warframe Heavy Caliber After Update 10.4-0
Warframe Heavy Caliber mod
==Patch History==
de:Schweres Kaliber
es:Calibre pesado
ru:Увеличение Калибра
Category:Mods
Category:Rare Mods
Category:Corrupted Mods
Category:Dual Stat Mods
Category:Damage Mods
Category:Rifle Mods
Category:Madurai Mods
Category:Update 10
Category:Accuracy Mods
uk:Великий калібр
fr:Gros Calibre