Unless stated otherwise, a charging unit cannot perform a turn, move backwards, move sideways, redress the ranks or reform manoeuvre during its charge move.
However, a charging unit must endeavour to bring the maximum number of models from both sides into base contact, which will often require some degree of manoeuvre. To facilitate this, a charging unit may wheel once, at any point, during its move, as shown in Fig 126.2.
Note that a charging unit does not have to complete its wheel if doing so would cause it to make a failed charge or would prevent the completion of a charge declared by another unit.
Once a charging unit has completed any required wheel, it completes its movement, moving straight ahead towards the charge target and stops as soon as the two units touch.