Shell casings bounce/ricochet. Its document in forensic literature. That farm girl video involves a much higher caliber weapon and shell casings will weight allot more thus they wont be going far.
"Figure 12.6 shows the somewhat common example of paint adhering to the mouth of a
cartridge casing fired, extracted, and ejected from a gun that was in close proximity to a wall
inside a house. While the positioning of the gun is approximate at best, this conclusion may
be critical to a shooting reconstruction.
In many cases, the crux of a dispute may be differing witness statements about whether
the shooter and gun were in a confined, indoor painted entranceway or just outside the door
on an open patio. The casing itself may have bounced outside, but this type of transfer could
have been accomplished only in association with the force of ejection. Merely tossing the casing
against the wall would not have allowed Locard’s Exchange Principle to take effect."
Michael G. Haag, Lucien C. Haag Shooting Incident Reconstruction, Second Edition
"Test firing and cartridge case location analysis showed that what actually must have
happened is that four shots were fired from the officer’s original position and the remaining
three shots were fired from the opposite side of the vehicle. The fired cartridge cases from
the second position undoubtedly landed on the rooftop of the vehicle and then bounced off
onto the street in the same area as the cartridge cases from the first position."
Practical Analysis and Reconstruction of Shooting Incidents Edward E. Hueske
"However, other reconstructionists understanding the effects of weapon manipulation,
shooter movement, bounce factors, and other elements, began to list and accommodate for some
of them. For example, Edward Hueske has said that reconstruction of an equivalent shooting
environment should take into account the following eight variables: weapon design, weapon condition,
ammunition type, position weapon was held when fired, movement of weapon during firing, how tightly the
weapon was held during firing, type of terrain where shooting occurred, and the presence of
obstacles."
FIRED CARTRIDGE CASE EJECTION PATTERNS FROM SEMI-AUTOMATIC FIREARMS
Force Science Institute and Minnesota State University, Mankato, MN, USA.
I appreciate if an object impedes the flight of an ejected casing it has the potential to cause the casing
to ricochet off the object and alter the normal casing ejection pattern. But I don't believe the poetntial for ricochet is as great as that depicted in your diagram. MF's estimate of 4' max is based on an unimpeded flight. Your diagram has the ejected casing travelling a few inches based on the normal pattern then ricocheting against the wall and travelling a further 3' to 4' in the opposite direction. I think you will find hitting the wall will remove all the energy and any ricochet will amount to a few inches max?
The rifle in the 'Farm Girl' vid, Bushmaster, uses .223. The Anshutz .22. The ejection mechanism on the Bushmaster will need to deliver more force to eject the casing due to the size and weight of the .223. However any energy remaining for free flight will be similar due to the difference in weight? The ejction mechanism will deliever proportionate force to eject the casing and any remaining energy for free flight will surely be similar?
The casings eject upwards, forwards and to the right. If we consider June's found position with the top of her head in a Northerly direction. Based on the wound tracks of the gsw's to her head the casings would be expected in a NE postion on the landing with nothing to impede the flight. DRH/3 and 4 are in an Easterly postion?
Its a pity we can't see how the casings land in this vid but we can see they definitely travel in a Northerly direction not Easterly
https://www.youtube.com/watch?v=Bgz0lqGVouo If June came face-to-face with the perp ie June facing out onto the landing and the perp facing into the bedroom with June sustaining the gsw's to her head in this position what would happen to her body in terms of involuntary movement and possibly falling against a moving object ie the door? Bearing in mind also MF estimated the gsw above the ear to have been fired when the rifle was more than a foot away and the gsw between the eyes less than a foot away.
