Some books had credited namely PE with sinking of HMS Hood instead of Bismarck, but it's hard to believe. Pretty recently the sources in German archives have been found that revealed the secrets of 15" AP shells' caps, that allowed the shell to be turned to normal angle even if impact was happening far from normal. As no such shells were captured after the war (both Bismarck and Tirpiz were on sea botton and no such guns were installed somewhere else), the one capless unexploded shell found in the hull of HMS Prince of Walles from the same battle at May 1941provided no info about the caps.