A word of warning

[Ferengi]

An exploding bartuc in worldstone against a character with max resists and 2200 life would need to do over 14k in damage I believe.

I believe that FE death is actually CE, which means that it is 1/2 physical and 1/2 fire. I don't believe that the physical can be blocked, only DR helps. So the actual damage needed to kill you is 2200x2+1. CE is supposed to be 60% of HP and NM Bartuc has 4644 HP per d2data. I don't know the multiplier for player count for monster HP, but I can work backwards, NM Bartuc would need 7334 HP (which is a player counter multipler of about 1.6) for the explosion to kill you.

well I was just checking d2data for 1.09 data, and something is clearly wrong with the numbers. I was going to add there are some funny effects with CE that I learned with CorpsePopper, a max CE 1.09 necro for killing Nilathak in a "racing" contest. Basically, it is possible to be missed by CE due to angular relationships (which was just my best guess at the time). The physical part of CE can be blocked by any physical obstruction in the map area between you and the corpse in addition. It was not uncommon for CorpsePopper to find a lone, unharmed monster wandering around after blowing up a dozen monsters in the area.

But I actually suspect that it was Yet Another Programming Error in the game.