Bolter force

Mass-reactive rounds slam into the floor and front wall of the listening station module. Mass-reactive rounds fired from below.
The floor and front wall shred. Disintegrating metal plating becomes splinters and lethal tatters. Light and flame compress upwards into the module through its ruptured shell from the blast points, driving the splinters in with it.
The air inside the module fills with expanding flame and whizzing fragments. The forced pressure of the strike blows out the window ports and annihilates the vox-caster desks. Seneschal Arbute is knocked backwards. The head and shoulders of one of her aides become red mist as a round strikes and detonates. White-hot spalling and jagged shrapnel from the floor macerates the two vox-operator volunteers. The other staff aide, a clerk, is thrown into the module's ceiling by the upward pressure of the blasts. His broken body then falls back and drops out through a floor that is no longer intact.
Selaton sees the murdered clerk fall, cartwheeling away, dislocated and loose. His corpse disappears down through the girder work of the pylons, just one more chunk in a hailstorm of spinning debris and burning fragments.
The deck begins to break away from the front wall.
...
Arbute is dead. There isn't a wound on her, but Ventanus knows that the overpressure and kinetic slam of the mass-reactive strikes will have pulped her human organs.

Know No Fear