I guess he had even more EHP than you had.
Also no, you can’t warp directly on the chamber (I think it’s 50km off warp point ?)
131k EHP in that fit :
[Proteus, *Simulated Proteus Fitting]
Imperial Navy 1600mm Steel Plates
Imperial Navy 1600mm Steel Plates
Corpum C-Type Multispectrum Energized Membrane
Corpum C-Type Multispectrum Energized Membrane
Damage Control II
Corpum A-Type Explosive Energized Membrane
50MN Microwarpdrive II
Scan Rangefinding Array II
Scan Rangefinding Array II
Covert Ops Cloaking Device II
Sisters Core Probe Launcher
250mm Railgun II
Medium Trimark Armor Pump II
Medium Trimark Armor Pump II
Medium Trimark Armor Pump II
Proteus Core - Augmented Fusion Reactor
Proteus Defensive - Covert Reconfiguration
Proteus Offensive - Hybrid Encoding Platform
Proteus Propulsion - Hyperspatial Optimization
Sisters Core Scanner Probe x8
Spike M x40