cartouches

Sujet: cartouches Mer 5 Sep 2007 - 12:17

voici un lien interesent: http://la-cartouche.skynetblogs.be/archive-month/2005-06

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Mystère résolue: cartouches qui présentent sur l’enveloppe, soit un trait de scie ou trait de cisaille.
Image: http://www.killersbrabant.be/pieces/brabant_8_Moyen.jpg

De nombreux exemplaires de cartouches de ce genre, présentent sur l’enveloppe, soit un trait de scie ou trait de cisaille.
Question :
Auriez vous eu connaissance d’une personne présentant l'habitude d'arracher les languettes des boites de cartouches de cette façon-là ?
Source: http://www.killersbrabant.be/

Ma recherche:

“…There is only one reason …The cut is made behind the shotcup/wadding so that when fired, the entire forward area of the hull including the shot and shotcup separate from the brass and the stub of the hull left attached to the brass. The area of the hull forward of the cut travels through the bore and exits the barrel intact with the separated hull keeping the shot load intact and moving as a single mass.
The belief is that you now basically have a projectile that functions as a slug in terms of external ballistics. That is, there is no shot spread and you have a very large unitary projectile. Upon impact you get an enhanced terminal ballistics function over what you would normally see from either a slug or buckshot. The pseudo-slug opens up on impact. You now have a pre-fragmented slug in which all of the buckshot is dumped into the target at one time, in one rather limited area. This could be done with smaller birdshot as well, and might actually make it more damaging as well as you would end up with what would look like a blizzard of small shot in the wound channel on X-ray. By keeping the shot together at least initially, it might provide birdshot with enough penetration to do far more damage than it would normally have by using the greater mass of the entire load being held together. Once the hull and shot separated inside the body, it would almost be like having a contact wound from the birdshot, although the velocity would be lower.

Facile, non?
salutations distinguees

Inscrit le : 24 Mar 2007 Messages : 2866

et de trois...
A ce rythme la, on a un gouvernement cette semaine.
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La complaisance fait des amis, la vérité engendre la haine
N'admettez rien à priori si vous pouvez le vérifier.
On doit des égards aux vivants; on ne doit aux morts que la vérité.
A quoi bon soulever des montagnes quand il est si simple de passer par dessus ?
Boris Vian

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Update:

“Years back … this being [was] done. It was a very foolish and dangerous procedure, though. The theory/old wives tale, was upon firing the whole front portion of the shell would separate at the cut. Supposedly upon leaving the end of the barrel in one piece, it would be similar in ballistic properties to a rifled slug. This in turn would make make a conventional shell loaded with small diameter bird shot, effective against larger game animals, if slugs weren't available.”

“First, I'd define that has a horizontal or radial cut, not a vertical or lengthwise cut.
Second, if the cut is deep enough, the shell will separate at the cut.
Third it won't hurt the gun at all, although it does make a weird "whistling" noise when it leaves the barrel
Forth, anyone that has reloaded enough Peters Blue Magic's (AKA Blue Tragics) has experienced a similar separation.
Fifth, in many states if a shell like that is found in your possession during small game season, say good bye to your gun, gear, vehicle and say hello to your new bed buddy Bubba.
This is a old poachers trick, used to kill deer during small game season, and is listed in most game regulations as a "cut shell". “

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Update:

Réinterprétation:
Voici, ce que j’en pense, bref mon hypothèse:
Les tueurs avaient manipules les cartouches, mais apparemment quelques cartouches étaient mal “sciées”, donc devenues inutilisables. Ce qui pourrait expliquer, pourquoi elles n’ont pas été utilisées et jetées ensuite.

Détail intéressant, qui favorise la piste politique avec l’implication du groupe occulte G (Gendarmerie)
“Cut shells are addressed during SF [ Special Forces- forces speciales] improvised munitions training, during the same portion where they explain how to launch grenades with a shotgun.”

“improvised munitions training”
http://en.wikipedia.org/wiki/TM_31-210_Improvised_Munition_Handbook
The TM 31-210 Improvised Munition Handbook is a United States Army technical manual intended for the United States Special Forces describing manufacture of improvised weapons and explosives from readily available materials, from junk piles, common household chemicals and supplies purchased from regular stores. It was first published in 1969 by the Department of the Army.

Et ici le livre
http://www.fortliberty.org/military-library/improvised-munitions-handbook/improvised-munitions-handbook.shtml

ici le chapitre
http://www.fortliberty.org/military-library/improvised-munitions-handbook/shotshell-dispersion-control.shtml

Dans cette édition le « slug » improvisé n’est pas mentionné . Mais il est fort probable que dans des ouvrages identiques ou des éditions antérieures, le « slug » improvise était décrit.

“ …I would say that it is definitely not a well-known procedure. At the least, it is not talked about very much. They probably would not be new to shooting shotguns, and I doubt there's even very many American police that know or have heard about this. It has never come up in any conversations I've had with anyone, and I only heard about it the one time. I don't think I've even discussed with anybody else. Seemed like it wasn't really worth the risk to me…”

“…I'd guess it was done to salvage shot. It's not a "cut shell" because it's cut at an angle, meaning it won't fly anywhere near straight.
I've experimented a bit with cut shells and they do work, but have nowhere near the effective range of a real slug. If anyone's inclined to try this, it's not a bad idea to check the bore for obstructions after each round.
EDIT: Cut shells are addressed during SF improvised munitions training, during the same portion where they explain how to launch grenades with a shotgun. Seriously.”

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