Your claim the graze wound and shot to Nevill's shoulder were delivered as he walked down the stairs is impossible given the shooter was facing his left side and his left side would face the wall as he walked down the stairs. You failed to post any evidence at all to establish these wounds were delivered as he walked up the stairs and was near the top of the stairs which wound be needed for incline of the shots. The shooter could only target his left if standing near the door of the bedroom Sheila was using. The angle of the shot though would not work and especially would not work for the graze wound. Though they were to the side profile of Nevill they came from the rear not forward. A shooter standing near the door of the room Sheila was in would come from the front side. If he were going down the stairs only his right side could be targeted.
Furthermore there would have been 2 less casings in the bedroom and 2 additional casings on the stairs.
The single casing in the hallway was transported there from the kitchen.
The 4 casings and bullet that grazed Nevill being located in the bedroom helps prove that is where such 4 shots were fired. For sure the trajectories rule out the shots being delivered as he was in the hall or on the stairs.
Firstly, I have posted evidence that shots 8 and 7 were delivered from above Ralph Bamber by reference to the angle inclination shown in the diagrams. Let me put it as simple as I can - Ralph is on the middle landing of the main stairs, and or somewhere on the upper flight of the main stair above the middle landing aforementioned. The shooter could have easily shot at Ralph causing the two wounds (8 and 7) from the vantage point of the upper landing, since with Ralph on his way up, or down on that part of the main stairs, it didn't matter whether or not which way around his body was facing because the shooter would easily have had the opportunity to inflict both shots, irrespective of whether or not Ralph had his left side to the wall, or his right side...
I have explained the distribution of cases, and how four were added to the main bedroom, after PI Bob Miller vacated items which originally had exhibit references DRH/1, DRH/2, DRH/3 and DRH/4, if you can't get your head around that then there is quite simply no hope of you ever coming to terms with what actually took place. But just to recap, 8 cartridge cases originally in the main bedroom, add to these 4 additional cases displaced from the kitchen, producing 12 cartridge cases in the main bedroom. I know you you disagree, but so what, I know that what I am saying is right. The 13th cartridge case was not inside the main bedroom, it was outside on the top landing. I believe it possible that this particular cartridge case may have got moved along the top landing by traffic coming and going before DC Hammersley (soc) supposedly collected it up after 10 am...
I believe the cartridge cases recovered from the top landing and the main stair are associated with Ralphs 8 and 7 wounds...
If I am right, and I believe that I am, Ralph Bamber was shot a total of 6 times whilst present in the kitchen - two bullets to the mouth region whilst he was using, or had used the telephone. we know that blood from his wounded left arm had contaminated the fingers of his left hand which contaminated the edge of the kitchen worktop. by that stage when his bloodied left hand fingers gripped the kitchen worktop, it left his uninjured right arm / hand to operate the telephone, and it begs the question why would he be holding the telephone handset in his right hand intending to make a telephone call, if he already had a mouthful of bullets - this indicates that by the time he used the phone to make distress calls (however brief) firstly to Jeremy, and then to the police at 3.26am, that he had not yet been shot in the lip, or his jaw...
Police made a fundamental mistake moving the location of four bullet cases from the region of the main kitchen downstairs, to the main bedroom upstairs, because it left 3 cartridge cases in the kitchen, when there should only have been 2. In other words, they were faced with a paradox, and whichever way they decided to handle it, they were always going to be in trouble one way or another, they could doctor the logistics as much as they wanted to, but they could never make the logistics fit perfectly. If you remove 4 cases from the kitchen to promote the idea that Ralph had been shot 4 times non fatally upstairs in the main bedroom, it should have left two cartridge cases downstairs in the kitchen (4 cases from the 4 fatal head shots, and 2 cases from the bullets to the mouth shots), but when PI Bob Miller handled the swap over of these 4 cartridge cases, he made the fundamental mistake of leaving an additional cartridge case in the kitchen, he confused himself by forgetting, or indeed, remembering that Sheila had in fact been shot once downstairs in the kitchen...
Now, before you get on your high horse, by suggesting that Sheila was not shot downstairs in the kitchen, let me reassure you that she was. The story that PC Collins made a mistake by misidentifying Ralphs body for that of a female through the main kitchen window prior to entry into the premises by the raid team (including PC Collins himself), can easily be proven to be nothing but a red herring, since in his COLP interview, Collins himself describes the approach to the rear farmhouse door on WHITE SIDE of the farmhouse via a curved wall, and that he went beyond the door and looked into the kitchen window beyond. Now, he is correct when he says that the window he looked through beyond the door being a kitchen window. But the window in question was not the main kitchen window, it was the back kitchen window - the window before the door was / is the main kitchen window. Therefore, Collins saw a female through the back kitchen window, and of course, Ralph Bambers body was found inside the main kitchen. So, in a nutshell, Collins could not possibly have misidentified Ralphs body in one room, for the body of a female in the other room, or vice versa...