Once you've completed Shadow of the Mountain, you can freely explore the Drill Site. You'll find it tucked away in a canyon-like section of the map filled with industrial wreckage, jagged cliffs, and bandit encampments. Be warned: this area is crawling with
Borderlands 4 Boosting enemies, and even reaching the boss arena can feel like a mini endurance run.
Saddleback and Immortal Boneface Location
You'll find Saddleback and Immortal Boneface at the far southern tip of Terminus Range, inside the Old Scrape Ripper Drill Site. When you approach the arena, you'll see a massive mechanical drill surrounded by scaffolding and old mining equipment - that's your cue you're in the right place.
If you're looking to farm this boss duo for their loot, there's a convenient method. Near the northeastern entrance to the site, you'll find Moxxi's Big Encore Machine. This device lets you reinitiate completed boss fights for a cost, making it perfect for farming Legendary drops without restarting your entire game session. Each replay resets the boss encounter, allowing you to target specific items.
For easy navigation, check your in-game map once you've unlocked Terminus Range - the Ripper Drill Site will appear as a distinct marker near the southern cliffs.
All Saddleback and Immortal Boneface Legendary Drops
Like most Borderlands world bosses, the Meathead Riders have their own dedicated loot pool. Their drops are highly sought-after, especially by players building hybrid or elemental loadouts. While exact drop rates vary depending on your Mayhem or Chaos difficulty level, the following items are confirmed to drop from Saddleback and Immortal Boneface:
The Sawtooth Splitter (Legendary Assault Rifle): A brutal rifle that deals increasing damage the longer you sustain fire on a single target. Especially effective against armored foes like Saddleback.
Iron Howler (Legendary Shotgun): Fires ricocheting slugs that explode on impact. Perfect for crowd control in the boss arena.
Bonegrinder Helm (Legendary Headgear): A unique cosmetic drop exclusive to the Meathead Riders fight. It features a skull-and-chain motif inspired by Boneface himself.
Saddleback's Spine (Legendary Shield): Provides massive resistance to Corrosive and Shock damage while amplifying melee attacks when depleted.
Big Scrape (Legendary Grenade Mod): Summons a mechanical drill projectile that burrows into enemies before exploding.
While these are the most common rewards, players have also reported rare world-drop Legendaries from other loot pools appearing during repeat fights. As always, higher difficulty tiers and Mayhem modifiers improve your odds.
How to Defeat Saddleback and Immortal Boneface
Now for the fight itself. The Meathead Riders are one of the more complex dual-boss encounters in Borderlands 4. The key challenge is managing both enemies' unique mechanics - you'll need patience, good positioning, and the right elemental setup.
Phase 1: Defeating Saddleback
When the fight begins, Saddleback charges in on a heavily armored vehicle bristling with turrets. He's essentially a "bullet sponge" boss, so prioritize Corrosive and Shock weapons to break through his armor quickly. You'll need to focus entirely on him at first - Immortal Boneface is invulnerable until Saddleback's mount is destroyed.
Keep moving at all times. The arena is filled with uneven terrain, debris, and cliffs that can easily send you tumbling to your death if you backpedal too far. Use the metal structures and mining crates as cover when reloading or reviving teammates. Weapons with splash damage or high fire rate work best to chip away at Saddleback's thick armor plates.
Phase 2: Facing Immortal Boneface
Once Saddleback's vehicle explodes, Immortal Boneface enters the fray. He's a fast, aggressive melee boss with devastating close-range attacks. His weak points glow red across his chest and arms - aim there for critical hits. Boneface alternates between charging strikes and tossing explosive bone-like projectiles that deal Incendiary damage over time.
He's vulnerable to Corrosive, Incendiary, and Shock damage, making elemental weapons incredibly effective. A Shock SMG or Corrosive sniper rifle can quickly stagger him if you maintain consistent DPS. Watch out for his enraged phase - when his health drops below 25%, his melee attacks become faster and his projectiles explode in larger AoEs.
If you're playing co-op, have one player kite Boneface around the arena while the others unload damage from range. Solo players should use speed-boosting relics or defensive abilities like shields and barriers to stay alive.
Farming Strategy and Tips
After defeating the Meathead Riders once, you can re-farm them through Moxxi's Big Encore Machine. Each run has a chance to drop a different combination of the Legendaries mentioned earlier. To maximize efficiency:
Equip a Loot Luck relic or class mod to boost Legendary drop chances.
Adjust your Mayhem Level to increase difficulty and loot quality.
Use Corrosive and Shock gear for Saddleback, then switch to Incendiary for Boneface.
Keep moving - the arena's edges are steep cliffs that can kill you instantly if you fall.
This duo is among the toughest world boss fights, but the rewards more than justify the challenge. A well-coordinated team can melt through them in minutes, while solo players can use cover and elemental synergy to grind out those high-tier drops.
Final Thoughts
The Meathead Riders are a perfect example of what makes Borderlands 4 boss design so exciting - chaotic arenas, layered mechanics, and valuable loot that keeps you coming back for "just one more run." Saddleback's armor and Boneface's aggression make for a thrilling tag-team battle that tests both endurance and precision.
Whether you're farming their exclusive Legendaries or completing every world boss challenge, mastering this fight is a must for any Vault Hunter aiming to
cheap Borderlands 4 Boosting dominate Terminus Range. Gear up, bring your best elemental Borderlands 4 Weapons, and take down the Meathead Riders - the rewards are worth every bullet.
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