Case solved...
i'm sorry, and perhaps the fault is mine, but i don't understand how, if a pull through test was performed on august 13th, and all traces of blood were thereby removed from the barrel, that factor explains or negates the relevance of the presence of human blood found inside (about 4 or 5 baffles from its end) the sound moderator. further, of course, that blood was found to be that of sheila (albeit there was a remote possibility that such blood was an admixture of june and neville's blood). the fact that blood was found inside the sound moderator surely establishes that the sound moderator was fitted to the barrel at the time of the shootings and, of course, it is highly relevant that it was considered to be sheila's blood since she was of such stature as to be unable to kill herself with the sound moderator attached to the rifle.
perhaps it can be explained to me quite how this is sensational new evidence
in anticipation of any response, can i say that i do not understand how blood inside the barrel is necessarily inconsistent with the sound moderator being attached at the time of the shootings