Quote Originariamente inviata da ziofester Visualizza il messaggio
un 7.62x39 diretto lo ferma... dipende dalla distanza e dal proiettile, come dice anche linux... ovvio non a bruciapelo... ma a 150 mt. fa già la sua porca figura...

invece il dragunov è in grado di perforare le piastre balistiche di livello iii


ecco un sito per comprendere le catalogazioni e le potenzialità delle protezioni balistiche, anche se tratta in specifico gli armor e non gli elmetti... molto meglio di "wikpedia fai da te", te lo garantisco

https://www.bulletproofme.com/


ma anche il sito che hai linkato dice che il iiia è fatto per le pistole:

mich / ach
advanced combat helmet the latest mil spec, the advanced combat helmet.
iii-a
there is no nij standard for helmets, but ours have been lab-tested to stop penetration of level iii-a rounds, as noted.


iii-a
9 mm fmj at ~1,400 fps
(~427 mps)
.44 magnum semi-jacketed hollow point at ~1,400 fps
(~427 mps).




ho trovato questo in giro per forum:

the sks fires the 7.62x39mm cartridge. this is about the equivelent of a .30-30 and the .223/5.56 when it comes to power. iow, it is among the weakest centerfire rifle cartridges out there. a .30-06 will far out perform it as will most common deer hunting cartridges.

body armor comes in various ratings. most common for police are nij levels iia, ii and iiia. none of these levels are rated against rifles. virtually any rifle can defeat them. level iii is specifically rated against the 7.62x39 and stops it quite well. level iv definitely stops it. many common hunting cartridges can defeat level iii.

7.62x39 is a medium powered assault rifle round and is approximately equivalent in power to the us 30-30. most typical hunting rifles are quite a bit more powerful than 7.62x39 and some magnum hunting rifles firing .30 cal bullets can generate more than twice the enegy of the 7.62x39. all kevlar vests which are nij level iiia and below can be penetrated by almost any rifle round including .223 and 7.62x39. level iii vests use sapi plates made of steel or ceramic and are rated against 30-06 ball and will stop typical assualt and battle rifle rounds. level iv vests like interceptor use ceramic plates and are rated for 7.62x54/30-06 ap and will easily stop 7.62x39.


resta da vedere se resiste al colpo ma viene catalogato iiia per questioni di "paraculismo" legale.