So I just used some warcaskets from Vanilla expanded pirates and any explosion appears to go right through the armour regardless of armor value,

I'm not talking about flak turrets or mortar shells, the generic explosion like when a turret blows up, this is a problem when it comes to mechanoid clusters which have a lot of turrets, including small turrets which seem to use the vanilla explosion with CE values

Tested in dev mode what kind of explosions will kill instantly, understandably certain explosions kill instantly such as AP shells against basic warcasket armour(the lowest default tier) but no matter which warcasket I use, the generic explosion from a turret will kill a colonist instantly

Not sure if that specific explosion occurs anywhere else but appears to only be mechanoid cluster turrets from observation and testing with dev mode but its really annoying that the vanilla explosion occurs to mechanoid turrets(and maybe colony turrets)