battering ram

Deltoids searing, I rotated my arms until Black Beard and Sprinter faced directly into the gunfire. Bullets pinged all around me, sending chips of gravel flying. Ninety yards from the warehouse, cutting across their line of sight, moving faster than a six-foot-ten behemoth carrying two grown men in full body armor should be able to move.

...

Instead I ducked my shoulders behind both forearms and rammed the steel door at twenty miles an hour with seven hundred pounds of armored flesh-and-bone.
-Sledge vs. The Labyrinth, pg. 157-158