Several hits are very closely together. This could mean that it was in fact one single shell which hit there, possibly triggering internal explosions or ruptures which were mistakenly identified as other shell hits. This idea is supported by teh fact that the author compiled the testimonies of several eye-witnesses.lwd wrote: When you say at most 18 hits where does this come from?
Which hits don't you believe are real in the above source?
The specific hits, based upon the link you provided: Firstly No 8-9 and No 2-3 and possibly no 4-5 and 13-15 are very close together.
Besides that, the report presents a very small number of 127mm shell hits (a total of 17), despite the fact that Wasington claimed 40 hits. That is why I suspect that in the heat of battle the sailors and officers of teh Kirishima failed to properly identify (or accurately remember) each and every type of shell which hit the ship. My impression is that they have mistakenly identified or mistakenly remembered some of the 127mm shells as 406mm ones.
All the best,
Alex