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Borderlands 4 Boss (October 2025 Guide) Saddleback & Boneface
By: Osama
Updated On: October 5, 2025
Saddleback and Immortal Boneface are optional bosses in Borderlands 4 located at The Old Scrape Ripper Drill Site in Terminus Range. This comprehensive guide reveals their exact location, proven strategies, legendary drops, and efficient farming methods to help you defeat the Meathead Riders and claim their valuable loot.
Quick Reference: Boss Overview
Boss Information
Details
Location
The Old Scrape Ripper Drill Site, Cuspid Climb, Terminus Range
Boss Type
Optional Boss Encounter (Meathead Riders)
Required Level
Recommended Level 25+
Elemental Weaknesses
Corrosive, Cryo, Shock, Incendiary
Legendary Drops
Hellwalker Shotgun, Lucian's Flank AR, War Paint Repkit
Farming Method
Moxxi's Big Encore Machine
Last Updated
October 2025
Location and Access
Finding The Old Scrape Ripper Drill Site
Saddleback and Immortal Boneface reside in The Old Scrape Ripper Drill Site, located in the Cuspid Climb area within the Terminus Range region of Kairos. This optional boss encounter becomes available once you discover Ripper Drill Sites on your map.
Contents
Detailed Location Instructions:
Navigate to Terminus Range: Head to the Cuspid Climb area in the southern region of Terminus Range
Find The Old Scrape: Look for the drill site near the connecting cusp to the Fadefields
Enter the Arena: Pass through the drawbridge of a giant skeletal creature
Clear the Area: Eliminate all Rippers in the nest to provoke the boss encounter
Pro Tip: The Old Scrape is marked on your map once discovered. Fast travel to the nearest Terminus Range checkpoint and head south to reach the area efficiently.
Boss Mechanics and Strategy 2025
Understanding the Boss Dynamics
The Meathead Riders consist of two bosses working together:
Saddleback: A large Meathead with two health bars (Armor + Flesh)
Immortal Boneface: Initially invulnerable while mounted on Saddleback
Critical Strategy: You must defeat Saddleback first! Immortal Boneface remains completely invulnerable as long as Saddleback is alive. Even when Boneface occasionally dismounts, his shield regenerates too quickly to make attacking him worthwhile before Saddleback is defeated.
Step-by-Step Battle Strategy
Phase 1: Defeating Saddleback
Saddleback's Health Bars:
Armor Bar: Use Corrosive and Cryo damage
Flesh Bar: Switch to Incendiary damage
Positioning Strategy:
From the arena entrance, immediately move to the far left side
This enclosed area has only one entry point, preventing enemies from surrounding you
Use the containers in this area for mobility and cover
Combat Tips:
Leave weaker enemies alive for potential second-wind opportunities
Prioritize eliminating heavy enemies with shields first
Use cover effectively to avoid the bosses' powerful attacks
Manage your ammo and ability cooldowns between phases
Phase 2: Defeating Immortal Boneface
Once Saddleback falls, Immortal Boneface becomes vulnerable and transforms from "Immortal" to "Not-So-Immortal" Boneface.
Immortal Boneface's Health Bars:
Shield Bar: Use Shock damage for maximum effectiveness
Flesh Bar: Continue with Incendiary damage
Key Changes in Phase 2:
Boneface moves independently and is more aggressive
Attack patterns become more predictable but more dangerous
The arena may have additional environmental hazards
Advanced Tactics:
Save your most powerful abilities for this phase
Use the same left-side positioning for consistent strategy
Focus on critical hit locations if visible
Manage your Repkit usage carefully for sustained healing
Legendary Drops and Loot
Complete Drop Table
Legendary Item
Type
Special Effect
Best For
Hellwalker
Shotgun
Soothslayer
High burst damage, DOOM reference
Lucian's Flank
Assault Rifle
Trample - Critical Hits refill up to 2 Ammo to Magazine
Critical hit builds, essentially infinite ammo
War Paint
Repkit
Chrome - +30% Fire Rate and +30% Movement Speed for 15s, reduces Repkit Cooldown by 2s per damage taken
Fire rate builds, mobility-focused setups
Drop Analysis and Recommendations
War Paint Repkit - Highest Priority Farm This legendary Repkit is exceptionally valuable for builds focusing on fire rate. The Chrome effect provides:
Significant fire rate boost (30%)
Enhanced mobility (30% movement speed)
Cooldown reduction that stacks with damage taken
Synergy with rapid-fire weapons and aggressive playstyles
Lucian's Flank Assault Rifle - Critical Hit Specialists Perfect for players who consistently land critical hits due to:
Ammo regeneration on critical hits (up to 2 ammo per crit)
Sustained firepower during extended fights
Excellent synergy with precision builds and characters with critical hit bonuses
Hellwalker Shotgun - Burst Damage Enthusiasts A powerful shotgun featuring:
High single-shot damage
Soothslayer effect for additional damage
Nostalgic DOOM reference for fans of the franchise
Effective at close to medium range
Farming Method and Efficiency
Using Moxxi's Big Encore Machine
After defeating Saddleback and Immortal Boneface for the first time, you can repeatedly farm them using Moxxi's Big Encore Machine.
Step-by-Step Farming Process:
Return to the Boss Arena: Fast travel back to The Old Scrape Ripper Drill Site
Locate the Machine: Find Moxxi's Big Encore Machine near the arena entrance
Pay the Fee: Activate the machine and pay the required cash amount
Restart the Encounter: The bosses will respawn with full health
Defeat and Collect: Use the strategies above to defeat them again and collect drops
Farming Efficiency Tips:
Optimal Loadout: Use weapons matching their elemental weaknesses for faster clears
Character Selection: Choose Vault Hunters with high burst damage or area-of-effect abilities
Co-op Benefits: Team up with friends for faster clears and shared loot opportunities
Resource Management: Keep enough cash for multiple farming runs
Weekly Big Encore Boss Events
According to recent Borderlands 4 updates, the Weekly Big Encore Boss feature sometimes includes tougher variants of existing bosses with enhanced loot pools. Keep an eye on weekly activities, as Saddleback and Immortal Boneface may appear as featured bosses with:
Increased difficulty
Enhanced drop rates
Additional legendary items
Unique cosmetic rewards
Community Strategies and Pro Tips
Advanced Player Strategies
Missile Swarm Builds (Highly Recommended) The Reddit community has discovered that builds focusing on Missile Swarm mechanics excel against these bosses:
Missile Swarm: Spawns 3 homing missiles when armor segments break
Bundled Effect: Additional missiles spawn after each kill
Recommended Weapon: Domino Lionized Birt's Bees SMG with swarming bullets
Result: Massive area damage that melts both bosses simultaneously
Left-side corner dominance for consistent fight control
Environmental awareness to avoid being cornered
Mobility usage to escape dangerous attack patterns
Second-wind planning by keeping weaker enemies alive
Common Player Pain Points
Based on community feedback, players commonly struggle with:
Saddleback's Armor Phase: Players report it takes "AGES" to break through
Solution: Focus corrosive damage and use armor-breaking abilities
One-shot Mechanics: Both bosses can quickly eliminate unprepared players
Solution: Maintain distance, use cover, and keep Repkits ready
Chaotic Fight Environment: Multiple enemies can overwhelm players
Solution: Clear adds systematically and use the left-side positioning
Resource Management: Running out of ammo or healing mid-fight
Solution: Bring ammo boxes and manage Repkit cooldowns
Character-Specific Recommendations
Best Vault Hunters for This Fight
Vex the Siren
Why: Area denial abilities and summon damage
Best Skills: Phase Explosion, Eldritch Blast
Strategy: Use summons to distract bosses while dealing damage
Rafa the Exo-Soldier
Why: High burst damage and melee capabilities
Best Skills: APOPHIS Lance, Project: Raiju
Strategy: Use mobility to avoid attacks while dealing critical damage
Harlowe the Gravitar
Why: Control abilities and area damage
Best Skills: Stasis Slam, Stasis Immune
Strategy: Control boss movement and create damage opportunities
Amon the Forgeknight
Why: High durability and sustained damage
Best Skills: Scourge, Forgewhip
Strategy: Tank damage while retaliating with forge abilities
Skill and Gear Recommendations
Essential Skills:
Area-of-effect abilities for add control
Armor-breaking capabilities for Saddleback's first phase
Movement abilities for positioning
Healing or shield regeneration for sustainability
Recommended Gear Types:
Corrosive weapons (Saddleback armor phase)
Shock weapons (Boneface shield phase)
Incendiary weapons (flesh phases for both bosses)
High-capacity shields for survivability
Repkits with cooldown reduction
Troubleshooting and FAQ
Frequently Asked Questions
Q: What level should I be to fight Saddleback and Immortal Boneface? A: The recommended level is 25+, but skilled players can attempt them at level 20 with proper gear and strategy.
Q: Can I fight these bosses solo? A: Yes, they can be defeated solo, but co-op is recommended for easier clears and shared loot opportunities.
Q: How often can I farm them? A: As often as you want, provided you have enough cash to activate Moxxi's Big Encore Machine.
Q: What's the drop rate for legendary items? A: While exact rates aren't published, they have decent legendary drop rates compared to other optional bosses.
Q: Are there any time-limited versions of these bosses? A: Yes, they occasionally appear as Weekly Big Encore Bosses with enhanced difficulty and better loot.
Q: What should I do if I keep getting one-shot? A: Focus on left-side positioning, use cover effectively, and ensure your gear level is appropriate. Consider bringing a shield with high capacity.
Q: Can I fight them again in the same playthrough? A: Yes, using Moxxi's Big Encore Machine allows unlimited respawns in the same playthrough.
Q: Do they drop any unique cosmetics? A: While not confirmed in standard drops, Weekly Big Encore versions may include exclusive cosmetic items.
Common Issues and Solutions
Issue: "I can't find the boss arena entrance" Solution: Look for the giant skeletal creature drawbridge in The Old Scrape area of Cuspid Climb.
Issue: "Immortal Boneface won't take damage" Solution: You must defeat Saddleback first. Boneface is literally invulnerable while Saddleback is alive.
Issue: "The fight feels too chaotic" Solution: Use the left-side corner positioning and clear adds systematically before focusing on bosses.
Issue: "I keep running out of ammo" Solution: Bring ammo boxes, use weapons with good ammo efficiency, and consider Lucian's Flank for its ammo regeneration.
Saddleback and Immortal Boneface represent some of the most rewarding optional boss content in Borderlands 4 2025. With the strategies outlined in this guide, you're well-equipped to defeat the Meathead Riders consistently and farm their valuable legendary drops.
Key Takeaways:
Always defeat Saddleback first - Boneface is literally invulnerable otherwise
Use the left-side positioning for consistent fight control
Match your elemental damage to each boss's specific health phases
War Paint Repkit is the highest priority drop for most builds
Farm efficiently using Moxxi's Big Encore Machine
Bookmark this guide and check back regularly for updates as Borderlands 4 continues to evolve with balance patches and new content. The game's post-launch roadmap promises additional bosses, gear, and challenges that will keep the loot hunting exciting well into 2025.
Ready to take down the Meathead Riders? Grab your corrosive weapons, head to The Old Scrape, and show Saddleback and Immortal Boneface why you're the ultimate Vault Hunter!
Have additional tips or questions about this boss encounter? Join the discussion in the comments below or connect with our community on Discord and Reddit!
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