Enter the Gungeon
Bullet Bore
The explosive drills this gun fires will stun enemies before exploding. The Bullet Bore is an exotic weapon from the past, when the only creatures to carry guns were dinosaurs.
QualityA
Sell Creep buyback price41
ShellsWiki LinkOpen Wiki
Magazine Size1
Max Ammo75
Reload Time1.5s
DPS23.3
Damage10 (Impact) + 25 (Explosion)
Fire Rate1.00
Shot Speed20
RangeInfinity
Force8
Spread5
ClassExplosive
Description
Bullet Bore is a gun that fires drills which home in on enemies, stun them, and explode after a short delay.
Synergies
If the player also has 
Cluster Mine , 
Bow , 
Charmed Bow , or 
Explosive Rounds , Bullet Bore turns red and fires two drills at a time.
If the player has 
Megahand , enables Crash Bomber mode on Megahand, which fires Bullet Bore shots when fully charged. Modes can be switched by reloading the Megahand with a full magazine.
Notes
- This gun can hit Cannonbalrog and High Priest during attacks where not normally possible.
Helix Bullets will cause the bullets to only shoot and have piercing abilities, without the explosion and stunning effect.
- The drills fired are able to kill the mines spawned by the Mine Flayer .
Trivia
- This gun is a reference to the Cerebral Bore from Turok 2: Seeds of Evil . This is further shown by the synergy Cerebral Bros which is a slightly altered version of the Cerebral Bore's name.
- The synergy Cerebral Bros may also be a reference to the Mario Brothers, as they are commonly referred to as the Mario Bros and the weapon's color before and after the synergy match the colors of the two brothers' outfits.
Unlock Method
Purchase from 
Breach shopkeeper – Ox for 14 Hegemony Credit.