Heavy Caliber

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Polarity V
Rarity Rare
Dropped by Orokin Derelict Vaults

Heavy Caliber increases damage of primary weapons (excluding shotguns) at the cost of reduced accuracy by 15% and -5% per rank, at a maximum of 165% and -55% at rank 10, respectively.


Rank Damage Accuracy Cost Conclave
0 +15% -5% 6 C10
1 +30% -10% 7 C10
2 +45% -15% 8 C14
3 +60% -20% 9 C19
4 +75% -25% 10 C23
5 +90% -30% 11 C28
6 +105% -35% 12 C32
7 +120% -40% 13 C37
8 +135% -45% 14 C41
9 +150% -50% 15 C46
10 +165% -55% 16 C50


  • In comparison to Serration, Heavy Caliber costs two more mod power for the same damage buff despite the accuracy reduction.
  • Instead of reducing the accuracy by 5% per rank, each rank increases spread by a specific percent per rank depending on the weapon. This effectively reduces accuracy, but may reduce it by greater than 5% per rank (according to the Arsenal UI).
    • For example, a rank 10 Heavy Caliber will reduce Flux Rifle's accuracy to 16.8 from 100.
  • Damage increase of Heavy Caliber stacks additively with that of Serration. With Serration and Heavy Caliber both maxed, you can reach +330% base damage in total, before adding Elemental and Faction based damage mods.
    • Since the two stack additively, combining the two can be cost ineffective when weighed against mod point drain. Adding a maxed Heavy Caliber onto a maxed Serration yields only an additional 62% of the base shot damage. This is because the relative increase from 265% damage to 430% damage is not as significant as the increase from 100%. Players should exercise caution in comparing Heavy Caliber to more conventional mod choices, such as elemental damage.
  • Accuracy will suffer on weapons without 100% accuracy, affecting the actual bullet path. This makes even accurate guns like the Soma spread bullets considerably at maximum rank.
  • Not recommended for the Miter as the projectiles will fly very far from the reticle.
  • The accuracy penalty affects the Ignis and the Penta, but is essentially unnoticeable and is functionally used for pure damage. The Dera also is barely affected by the accuracy penalty.
  • There are currently no mods that counter the loss of accuracy from this mod.




See alsoEdit

Start a Discussion Discussions about Heavy Caliber

  • Heavy Caliber + Bows

    9 messages
    • I run heavy cal on both my bows.  Unless you are going for longer ranged kill, the loss in accuracy isn't too bad.  I usually run a sidearm l...
    • On bows, Piercing Caliber (Paris) and Fanged Fusillade (Dread) are quite nice and bring roughly the same damage boost as r6 heavy Cal. I supp...

    21 messages
    • ThorsonW wrote:And to actually add something along the lines of the OP — or the topic at hand — Jesus Christ, 200p for a single mod? Take ...
    • how mutch an unranked could worth?

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