Borderlands 4: How To Get The Hot Slugger

If you’ve been grinding through Borderlands 4, you’ve probably noticed that Legendary drops feel way rarer than in past games. Gone are the days when you’d walk away with a handful of orange loot after a single boss run. Instead, most of your early game is going to be painted in purple. But don’t worry—there are still some bosses who have a much higher chance of dropping something truly unique, and one of the best early grinds is for the Hot Slugger, a Jakobs shotgun that absolutely shreds when used right.

The Hot Slugger drops from none other than the Callous Harbringer of Annihilating Death, a boss whose name sounds way scarier than the actual fight. The real reward is walking away with one of the punchiest shotguns in the game, and I’ll walk you through how to find it, how to beat Callous, and why this weapon deserves a permanent slot in your arsenal.

Why the Hot Slugger Matters in Borderlands 4

Before we get into the nitty-gritty of the location and the fight, let’s talk about why the Borderlands 4 Hot Slugger is worth hunting down.

This isn’t just another Jakobs shotgun. The Hot Slugger has one of the fastest reload times in the game, clocking in at just 0.9 seconds. That’s practically instant for a shotgun, and when you’re surrounded by mobs in the Terminus Range, that reload speed can be the difference between wiping and walking away with stacks of loot.

The real kicker, though, is its unique effect. Every kill you land with the Hot Slugger gives you +30 percent bonus damage, stacking up to three times. That means you can walk around with a 90 percent overall damage boost, and it doesn’t just buff your gun damage—it buffs all damage. Grenades, melee, abilities—you name it, it hits harder.

Like most Jakobs weapons, the Hot Slugger also features ricocheting crit projectiles, bouncing deadly pellets into nearby enemies. The only downside is you’re firing a single shell at a time, but with that reload speed and the stacking damage buff, you barely notice.
Borderlands 4 Hot Slugger

Where to Find the Hot Slugger in Borderlands 4

Now for the good part: how to actually get your hands on it.

You won’t be able to farm the Hot Slugger right away. First, you’ll need to progress through the main campaign until you leave the Fadefields. Once you’ve made it into the Terminus Range, you’ll gain access to the area where Callous resides.

You’re looking for the Craven’s Nook Order bunker, located in the Mountain’s Apse. If you’ve been exploring thoroughly, it’s east of the Heritage Opus safehouse and just north of the Bones of Sanctuary. Once you get close enough, the bunker pops up on your compass, so don’t stress if you’re having trouble spotting it on the map.

Getting Inside the Bunker

When you reach the bunker, you’ll find the main entrance locked with heavy Order armor plating. The trick here is simple—look to the left cliff edge for a bio canister dispenser. Grab one, hurl it at the door, and boom—you’re in.

From there, prepare for the usual Borderlands dungeon crawl: waves of enemies, claustrophobic hallways, vent crawling, and a few vertical climbs through elevator shafts. It’s a grind, but nothing out of the ordinary if you’ve played the series before. At the end of the gauntlet, you’ll reach the arena where the Callous Harbringer of Annihilating Death awaits.

Beating the Callous Harbringer of Annihilating Death

Callous isn’t the toughest boss in Borderlands 4, but they do have a wide moveset that can catch you off guard if you aren’t paying attention. The key is learning the attack patterns and using the arena’s cover wisely.

Here’s a quick breakdown of the fight:

Slam Attack – When Callous raises their fists glowing gold, they’re about to smash down and send a shockwave. Just jump to avoid the hit.
Charge – Shield above their head? That means they’re about to rush you. Dash out of the way and unload a few rounds into their back.
Missile Barrage – If their shield glows, get behind cover immediately. They’ll unleash a frontal missile barrage.
Diamond Bullet Hell – Callous points their shield upward, shoots a beam into themselves, and unleashes a storm of diamond projectiles. Again, cover is your best friend.
Energy Streaks – Similar to the slam, but instead of a shockwave, energy streaks fire in all directions. Look for gaps between streaks and move into them.
Elemental Puddles – Callous can summon pools of elemental goo across the arena (poison, shock, fire). Don’t linger in them.
Mounted Turret – At times, Callous hunkers down and fires lasers from their shield-turned-turret. Strafe to the sides and keep circling until it ends.

Elemental Weaknesses

Callous is weak to Shock, Corrosive, and Cryo. Load up with weapons or skills that exploit these elements to melt through their health faster.

Farming the Hot Slugger

Once you down Callous, there’s a chance they’ll drop the Hot Slugger shotgun. It’s not guaranteed, so you may need multiple runs. Thankfully, Borderlands 4 has you covered with Moxxi’s Big Encore, a feature that lets you replay boss fights as many times as you want.

Here’s a quick farming loop:

Unlock the Craven’s Nook bunker.
Clear the area and reach Callous.
Beat Callous, check for the drop.
Use Moxxi’s Big Encore to repeat.

Depending on your luck, you might snag the Hot Slugger in your first few runs, or it could take ten or more. Either way, it’s worth the grind.

How the Hot Slugger Changes Your Gameplay

Once you’ve got the Hot Slugger, you’ll quickly realize just how powerful it is compared to early and mid-game weapons. That 90 percent stacked damage bonus is nothing to sneeze at, and when combined with Jakobs crit ricochets, you’ll start mowing through enemies faster than ever.

It shines in close-range encounters, boss fights where you can consistently reload and land kills, and mob-heavy areas where stacking bonuses comes easy. Pair it with a strong elemental weapon for range, and you’ve got one of the most versatile early-game loadouts possible.

Tips for Maximizing Your Hot Slugger

Prioritize Crits – Jakobs weapons thrive on critical hits, so aim for the head whenever possible to trigger ricochets.
Play Aggressively – The Hot Slugger rewards fast-paced play. Keep enemies close, cycle reloads, and keep your stacks active.
Combo With Grenades – Remember, the 90 percent damage buff applies to all damage. Toss grenades into crowds right after stacking, and watch them vaporize.
Use with Cryo Builds – Freezing enemies makes it easier to land crits, and the shotgun damage tears through frozen targets.

Why You Should Farm the Hot Slugger Early

Borderlands 4 is all about efficiency, and the Hot Slugger is one of those weapons that can carry you through a huge chunk of the campaign. While plenty of Legendaries are tied to late-game bosses or rare world drops, this one is relatively easy to farm once you unlock the area.

If you’re someone who wants a reliable power weapon before diving into tougher zones, this shotgun is a must-have. It gives you a serious damage boost without relying on overly complicated builds or rare mods.

Final Thoughts

The Borderlands 4 Hot Slugger is easily one of the best early Legendaries you can farm. It’s got everything you want in a Jakobs shotgun: fast reload, insane stacking damage, and those sweet ricocheting crits. The boss fight against the Callous Harbringer of Annihilating Death isn’t too punishing, and thanks to Moxxi’s Big Encore, farming is straightforward.

If you’re serious about getting ahead in the campaign and shredding through enemies like paper, make this weapon one of your first farming priorities. Trust me, once you’ve got it, you won’t want to put it down.

And while you’re grinding, don’t forget there are other ways to smooth out the experience—some players even explore options like Borderlands 4 Money services through platforms like G4mmo for extra support. But even without that, farming the Hot Slugger gives you a massive edge.

So grab your best elemental loadout, head into the Terminus Range, and start farming. The Hot Slugger is waiting.