The Imperial Fists Chapter Tactics Bolter Drill allows: "Imperial Fists models can re-roll all To Hit rolls of 1 made with bolt pistols, boltguns, storm bolters, heavy bolters and combi-weapons that are firing as boltguns."
It says "models" so I assume that the Storm Bolters on Drop Pods and vehicles also can re-rollall To Hit rolls of 1, correct?