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Bloons Wiki

Shots can pop through 7 layers of Bloon.
~ In-game description

Large Calibre is the second upgrade of Path 1 for the Sniper Monkey in Bloons TD 6. Bullets from this Sniper now deal 7 damage to bloons per shot instead of 4, enough to pop an entire Zebra Bloon or Lead Bloon, and pops an entire Rainbow Bloon into 8 Red Bloons. When crosspathed with Shrapnel Shot, shrapnel pieces deal 3 damage instead of 2.

Combined with other upgrades, especially with Full Auto Rifle and Elite Defender, Large Calibre's base damage alone makes a huge punch against MOAB-class bloons, and Bouncing Bullet's maximum bounce distance also increases from 40 to 50.

This upgrade costs $1,105 on Easy, $1,300 on Medium, $1,405 on Hard, and $1,560 on Impoppable.



Calibre salute

Two 2-0-0 Large Calibre Snipers, one pointing in the left side, and one doing a salute

The Sniper with Large Calibre's beret changes from red to purple, and gains a grey vest.

When pairing it with most Path 3 upgrades, the beret gains vertical stripes, and is colored purple on one side plus another color on the other side. This starts off with grey with Fast Firing, then orange with Even Faster Firing. Semi-Automatic will add a pair of earmuffs to the Sniper Monkey on top of the aforementioned changes. Full Auto Rifle turns the helmet of the Full Auto Rifle to purple, rather than vertical stripes.

Adding Night Vision Goggles will give the tower night vision goggles. Adding Shrapnel Shot will add an explosion symbol to the beret. Adding Bouncing Bullet will turn the army hat's coating purple. Adding Supply Drop will color the "bush hair" purple with black.

Large Calibre allows the Sniper Monkey to pop 7 damage to bloons per shot instead of 4. One single shot is enough to wipe out an entire Zebra Bloon or Lead Bloon, and can turn an entire Rainbow Bloon into 8 Red Bloons. If crosspathed with Shrapnel Shot, the shrapnel pieces deal 3 damage instead of 2. Bouncing Bullet maximum bounce distance increases from 40 to 50.

Targeting Priorities[]

Large Calibre targets bloons using the standard targeting priorities. It shoots a snipe attack.

  • First: Targets the first bloon visible within its range.
  • Last: Targets the last bloon visible within its range.
  • Close: Targets the closest bloon visible within its range.
  • Strong: Targets the strongest bloon visible within its range.

Can receive Camo Prioritization with Night Vision Goggles, allowing it to prioritize Camo Bloons over other types when active.

Full Popology[]


Updated as of Version 43.1
Base stats
  • Bullet:
    • Snipe projectile, normal type, infinite range, 1.59s attack cooldown, 7 damage, 1 impact pierce.
Crosspathing interactions
  • 1-1-0: Bullet damage deals +2 Camo damage.
  • 1-2-0: Bullet gains Shrapnel upon damaging bloons, Shrapnel changes from sharp to normal type, and Shrapnel damage increased from 2 to 3.
  • 1-3-0: Bullet bounces up to 3 times and triggers Shrapnel per bullet hit, and Bullet bounce distance increased from 40 to 50.
  • 1-4-0: Bullet bounces up to 4 times and Shrapnel pierce increased from 2 to 5.
  • 1-5-0: Bullet attack cooldown reduced from 1.59s to 0.636s.
  • 1-0-1: Bullet attack cooldown reduced from 1.59s to 1.11s.
  • 1-0-2: Bullet attack cooldown reduced from 1.11s to 0.779s.
  • 1-0-3: Bullet attack cooldown reduced from 0.779s to 0.2597s.
  • 1-0-4: Bullet attack cooldown reduced from 0.2597s to 0.1299s, MOAB-class damage gains +2.
  • 1-0-5: Bullet attack cooldown reduced from 0.1299s to 0.0649s, increase attack speed (not attack cooldown) by 1% for every 1% bloon progress, and 0.25x attack cooldown if bloons leak or lives are lost, and MOAB-class damage increased from +2 to +4 MOAB-class damage.
Monkey Knowledge interactions
  • EliteMilitaryTrainingIcon Elite Military Training: All Military Monkeys get a one-off +1000 XP and earn XP in-game 5% faster permanently.
  • CeramicShockIcon Ceramic Shock: Ceramic Bloons shot by all Snipers are slowed down for 2 seconds.
  • FlankingManeuversIcon Flanking Maneuvers: Attacks 10% faster when set targeting priority to "Last".
  • MilitaryConscriptionIcon Military Conscription: First military tower costs only ⅔ of the original cost.
    • Sniper Monkey base cost from $300, $350, $380, and $420 → $200, $235, $255, and $280 on Easy, Medium, Hard, and Impoppable, respectively.
  • AdvancedLogisticsIcon Advanced Logistics: All Military Monkeys base costs reduced by 5%.
    • Sniper Monkey base cost from $300, $350, $380, and $420 → $285, $330, $360, and $400 on Easy, Medium, Hard, and Impoppable, respectively.
      • If Military Conscription is also enabled, the final cost will be $185, $215, $235, and $260.
  • MonkeyEducationIcon Monkey Education: All Monkeys XP earn rate increased by 8%.
  • BetterSellDealsIcon Better Sell Deals: All Monkeys sell for 5% more. Increases sell potency from 70% to 75%.
  • VeteranMonkeyTrainingIcon Veteran Monkey Training: All Monkeys reload time reduced by 3%.

Attack Interactions[]

See also: Attack Interactions/Bloons TD 6/Military
Updated as of Version 37.3
Base attack(s)
  • Bullet:
    • Normal Type (pops Black, White, Purple, Lead, Frozen) Normal
    • Single Projectile Single Projectile
    • Snipe Snipe
    • Impact Impact
    • Full Map Range (unspecified description of how the tower can attack beyond basic range) Full Map Range
    • Extra damage to all bloon types (7) Extra Damage (7)


Updated as of Version 43.0. Listed prices exclude external buffs, any sacrifices, and Monkey Knowledge.
[Module | Data] Purchase Sell
Costs Easy Medium Hard Impoppable Easy Medium Hard Impoppable
Upgrade (2-X-X) $1,105 $1,300 $1,405 $1,560 -
Total (2-0-0) $1,695 $2,000 $2,165 $2,400 $1,187 $1,400 $1,516 $1,680
Crosspath (2-1-0) $1,905 $2,250 $2,435 $2,700 $1,334 $1,575 $1,705 $1,890
Crosspath (2-2-0) $2,285 $2,700 $2,920 $3,240 $1,600 $1,890 $2,044 $2,268
Crosspath (2-0-1) $2,075 $2,450 $2,650 $2,940 $1,453 $1,715 $1,855 $2,058
Crosspath (2-0-2) $2,455 $2,900 $3,135 $3,480 $1,719 $2,030 $2,195 $2,436

This upgrade's prices (or included crosspath's prices) are affected by the following MK: MilitaryConscriptionIcon Military Conscription, AdvancedLogisticsIcon Advanced Logistics, BetterSellDealsIcon Better Sell Deals



The Large Calibre upgrade is a straightforward damage buff upgrade intended mostly for breaking down many layers of each weaker bloon in a single shot rather than pure extra DPS, although the same upgrade serves as a highly beneficial upgrade to the Sniper's pure DPS when paired with any of the Sniper's higher upgrades. Like most Path 1 Sniper upgrades, Large Calibre benefits the most from the increased attack speed that the entirety of Path 3 provides, allowing its high damage output to be fully utilized. The same upgrade is also helpful for Upper Path 2 upgrades such as Bouncing Bullet or Elite Sniper to more reliably pop multiple dense groups of bloons.


  • It is advised to use a 2-0-2 Large Calibre with this upgrade, since it lets it fire faster, making it far more efficient. It would be preferable to upgrade further towards either Deadly Precision against Ceramics or Semi-Automatic for pure DPS (especially against mid-game MOABs and BFBs).
  • It is better off using the Large Calibre upgrade for Rounds 35+, as a Full Metal Jacket is often sufficient for bringing down Zebras and Leads into more manageable bloons.
  • One 2-+1-0 Sniper is enough to take down one Camo Rainbow with a single shot or one Camo Ceramic in two shots. But to fully utilize the solo camo popping power of Snipers, try upgrading further to 2-3-0 Bouncing Bullet for reliable group-popping.

Version History[]

Balance Changes[]

Large Calibre initially made little impact for Path 2 crosspathing, but later updates have buffed its interaction with crosspathing, including a base Sniper attack speed buff to compete over Path 3 crosspathing. It also received a small cost decrease in 41.0 to make this crosspath more approachable. The shrapnel damage was increased in 43.0 to give more strength of 2-2-0 combinations as a group-popping high damage option.

  • BUFF 2-2-0 Large Calibre increases Shrapnel Shot fragment damage (1 → 2)
  • BUFF Affected by base Sniper attack speed buff
  • BUFF Affected by 1-2-0 Sniper buff
Elite Sniper bouncing bullet jump distance has been reduced so that it can't quite bridge small track splits so easily, however to change up use this lost distance has been added back to crosspathing. [...]
~ Ninja Kiwi, referring to Bouncing Bullet and Elite Sniper
  • Change Indirect buff to the 2-3-0 crosspath, restoring the bounce distance to 50 instead of 40 without Large Calibre
Sniper Monkey has some very powerful upgrades but also many poor stepping stones. We felt this tower needed a big price shuffle all around, pushing down the cost of many underwhelming upgrades but returning this back into stronger upgrades.
~ Ninja Kiwi
  • BUFF Large Calibre price reduced from $1500 to $1300
Lower tier Shrapnel crosspathing balance doesn’t feel great currently, so the damage crosspath benefits at T1 & T2 are improving. [...]
~ Ninja Kiwi
  • BUFF 2-2-0 Shrapnel Shot shrapnel damage increased from 2 to 3. Does not affect 3-2-0 Shrapnel Shot shrapnel (4).

Bug Fixes and General Changes[]

Extra Notes (Version History)[]


Official artwork[]


  • In BTD6, the Point Five Oh pose from BMC is the standard pose of the Sniper Monkey upgrade artworks of Tier 1 and Tier 2.
    • The BTD5 Point Five Oh pose differs slightly in that the gun points slightly upwards, the monkey's right eye is wide open, and the monkey's posture is more bent with its noticeable knee-bending.
  • According to Ninja Kiwi's November 12th 2021 blog, the upgrade name "Large Calibre" is used instead of Point Five Oh because of "Bulletflation", a pun on "bullet" and "inflation". This may imply just a way to create more vagueness to specific bullet calibres.
  • According to Ninja Kiwi's 29th April 2022 blog, upgrades above Large Calibre don't have larger calibres but rather use more advanced technology.