possible? I'm not a gun person.

per un fucile normalmente si hanno i proiettili e non le bombe che sono lanciate da cannoni o aviotrasportate
Il proiettile può essere tracciante (tracer-bullet) perché si vede la sua taccia e quindi si può migliorare la mira, o illuminante (star shell, o perforante (armour-piercing shell), o incendiario (incendiary shell)

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Note added at 3 ore (2008-11-07 22:03:26 GMT)
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tuttavia shell sembra indicare anche bomba
Inoltre ho trovato un sito che conferma star shell, che è quella che noi chiamavamo "bengala"

http://www.firstworldwar.com/atoz/starshell.htm

A "star shell" was a form of artillery used a means of illuminating the battlefield during the hours of darkness, and also as a means of passing signals.
When fired the star shell, which contained a fuse, would burst while at a given height igniting a magnesium flare which burned while the shell, which also contained a parachute, gradually fell to earth


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Note added at 4 ore (2008-11-07 22:19:11 GMT)
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http://images.google.it/imgres?imgurl=http://www.brigatacado...


A quanto sembra il B 70/90 non lancia bombe ma solo proiettili!!!

I found the Italian in "Direttiva 2004/57/CE 24 aprile 2004" regulating the sale of these things and looked up the English EU version of the Directive. Just to what extent we can trust the Brussesl translators is another question, however these "flares" are of different types. In fact flares are under a different category translated as "Dispositivi illuminanti"

Ammunition, illuminating with or without burster, expelling charge or propelling charge Ammunition designed to produce a single source of intense light for lighting up an area.The term includes illuminating cartridges, grenades and projectiles; and **illuminating and target identification bombs**.


Munizioni illuminanti con o senza carica di dispersione, di espulsione o propulsiva
Munizioni concepite per produrre una sorgente unica di luce intensa allo scopo di illuminare uno spazio. Le cartucce illuminanti, le granate illuminanti, i proiettili illuminanti, ***le bombe illuminanti e le bombe con carica di localizzazione del punto di caduta*** sono comprese in questa denominazione.

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Note added at 33 mins (2008-11-07 18:41:41 GMT)
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http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2...

http://www.earmi.it/diritto/leggi/CEE57-04.htm

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Note added at 9 hrs (2008-11-08 03:59:33 GMT)
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Tracer cartridges are totally different things. I know exactly what they are, they were first used in World War I if I remember correctly. When you fire a bullet in a real battle you have absolutely know idea where they go exactly. In Italian they are "Traccianti per munizioni Oggetti sigillati contenenti materie pirotecniche e concepiti per seguire la traiettoria di un proiettile." There are chemicals in a small cartridge which travels with the bulled. The chemicals burn and you can see the trajectory of the bullet as it travels.

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Note added at 9 hrs (2008-11-08 04:00:40 GMT)
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If you examine my documents carefully, you will see that they are pretty exhaustive.