@ Alecsandros,
this is what the Baron stated :
From here : C.B. 4051 (24) GERMAN BATTLESHIP BISMARCK Interrogation of Survivors - August 1941 at page 13-14.Kapitänleutnant von Müllenheim-Rechberg stated, when interrogated aboard H.M.S. "Dorsetshire," that "Hood" closed the range rapidly, made smoke, and was hit as she turned to port, the smoke possibly assisting ranging.
He added then that "Hood" blew up on "Bismarck's" fifth salvo and cost Germany forty shells in all.
http://www.uboatarchive.net/BismarckINT.htm
Bye Antonio