Xa uthengaisikrweqe somzimba sokuqala, Ngokuqinisekileyo awusayi kuphuma endleleni yakho ukufunda ileyibhile yesikrweqe somzimba, kwaye awuyi kubuza ukuba semthethweni kwesikrweqe somzimba，Kodwa ungakhathazeki, iivenkile eziqhelekileyo eziqhelekileyo zinesatifikethi sokuhlolwa kunye nesazisi esisemgangathweni, ukuba uthenga isikrweqe somzimba kwimarike yabucala kufuneka ufunde lo mxholo ulandelayo.
Yintoni i-NIJ Standard?
Olu papasho lweZiko leSizwe lezoBulungisa (i-NIJ), i-Ballistic Resistance of Body Armor, i-NIJ Standard 0101.07, ichaza ubuncinane beemfuno zokusebenza kunye neendlela zokuvavanya ukuxhathisa i-ballisticisuti yokulwa nodusheisetyenziswa ngamapolisa ase-US ejonge ukukhusela umzimba kwimipu kunye neembumbulu zompu.Luhlaziyo lweZiko leSizwe lezoBulungisa (i-NIJ) uMgangatho we-0101.06, i-Ballistic Resistance of Body Armor, eyapapashwa kwi-2008.
Uhlobo IIA (9 mm; .40 S&W)
Uhlobo lwesikrweqe se-IIA esitsha nesingekanxitywa siya kuvavanywa nge-9 mm yeMetal egcwele iJacketImpumlo eRound (FMJ RN) iibhulethi ezinobunzima obuchaziweyo be-8.0 g (124 gr) kunye nesantya se-373 m/s± 9.1 m/s (1225 ft/s ± 30 ft/s) kunye ne.40 S&W Full Metal Jacketed (FMJ) iimbumbulu ezineubunzima obucacisiweyo be-11.7 g (180 gr) kunye nesantya se-352 m/s ± 9.1 m/s (1155 ft/s ± 30 ft/s).
Uhlobo lwesikrweqe se-IIA esibekwe kwimeko siya kuvavanywa ngeembumbulu ze-RN ze-9 mm FMJ ngeubunzima obuchaziweyo be-8.0 g (124 gr) kunye nesantya se-355 m/s ± 9.1 m/s (1165 ft/s ± 30 ft/s) kunyenge .40 S&W FMJ iimbumbulu ezinobunzima obuchaziweyo be-11.7 g (180 gr) kunye nesantya se-325 m/s ±9.1 m/s (1065 ft/s ± 30 ft/s).
Uhlobo II (9 mm; .357 Magnum)
Uhlobo II isikrweqe esitsha nesingekanxitywa siya kuvavanywa ngeembumbulu ze-9 mm FMJ RN ezinobunzima obuchaziweyo be-8.0 g (124 gr) kunye nesantya se-398 m/s ± 9.1 m/s (1305 ft/s ± 30 ft/ s) kunye ne-.357 Magnum Jacketed Soft Point (JSP) iibhulethi ezinobunzima obuchaziweyo be-10.2 g (158 gr) kunye nesantya se-436 m / s ± 9.1 m / s (1430 ft / s ± 30 ft / s).
Isikrweqe soHlobo lwe-II esibekwe phantsi komqathango siya kuvavanywa ngeembumbulu ze-9 mm FMJ RN ezinobunzima obuchaziweyo be-8.0 g (124 gr) kunye nesantya se-379 m/s ±9.1 m/s (1245 ft/s ± 30 ft/s ) kunye ne.357 iimbumbulu ze-Magnum JSP ezinobunzima obuchaziweyo be-10.2 g (158 gr) kunye nesantya se-408 m / s ± 9.1 m / s (1340 ft / s ± 30 ft / s).
Uhlobo IIIA (.357 SIG; .44 Magnum)
Uhlobo lwesikrweqe se-IIA esitsha nesingekanxitywa siya kuvavanywa ngeembumbulu .357 SIG FMJ Flat Nose (FN) ezinobunzima obuchaziweyo be-8.1 g (125 gr) kunye nesantya sama-448 m/s ± 9.1 m/s (1470 ft/ s ± 30 ft/s) kunye ne .44 Magnum Semi Jacketed Hollow Point (SJHP) iimbumbulu ezinobunzima obuchaziweyo be-15.6 g (240 gr) kunye nesantya se-436 m/s ± 9.1 m/s (1430 ft/s ± 30 ft/s).
Uhlobo lwesikrweqe se-III esibekwe phantsi komqathango siya kuvavanywa ngeembumbulu .357 SIG FMJ FN ezinobunzima obuchaziweyo be-8.1 g (125 gr) kunye nesantya se-430 m/s ± 9.1 m/s (1410 ft/s ± 30 ft/ s)kunye ne .44 iimbumbulu ze-Magnum SJHP ezinobunzima obuchaziweyo be-15.6 g (240 gr) kunye nesantya se-408 m/s ± 9.1 m/s (1340 ft/s ± 30 ft/s).
Uhlobo III (Imipu)
Uhlobo lwe-III lwesikrweqe esiqinileyo okanye ukufakwa kwepleyiti kuya kuvavanywa kwimeko ene-7.62 mm FMJ, iimbumbulu zentsimbi ezinebhatyi (igama lomkhosi wase-US M80) kunye nobunzima obuchaziweyo be-9.6 g (147 gr) kunye nesantya se-847 m/s ± 9.1 m. /s (2780 ft/s ± 30 ft/s).Isikrweqe se-III esibhetyebhetye siya kuvavanywa kuzo zombini iimeko “njengentsha” kunye nemeko ene-conditioned nge-7.62 mm FMJ, iimbumbulu zentsimbi ezinebhatyi (igama lomkhosi wase-US M80) elicacisiweyo. ubunzima be-9.6 g (147 gr) kunye nesantya se-847 m/s ± 9.1 m/s (2780 ft/s ± 30 ft/s).
Kudidi lwesithathu lwesikrweqe esiqinileyo okanye ukufakwa kwepleyiti eza kuvavanywa njengoyilo oludityanisiweyo, isikrweqe esibhetyebhetye siya kuvavanywa ngokuhambelana nalo mgangatho kwaye sifunyanwe sithobela njengesikrweqe esizimele sodwa kwinqanaba laso logrogriso elichaziweyo.Indibaniselwano yesikrweqe esibhetyebhetye kunye nesikrweqe esiqinileyo/ipleyiti iya kuthi emva koko ivavanywe njengenkqubo kwaye ifunyanwe ibonelela ngokhuseleko kwinqanaba lezoyikiso lenkqubo elichaziweyo.Izikrweqe eziqinileyo ezivunyiweyo ze-NIJ kunye nokufakwa kwepleyiti kufuneka zibhalwe ngokucacileyo njengokubonelela ngokhuseleko lwebhola kuphela xa zinxitywe ngokudibeneyo nenkqubo yesikrweqe evunyiweyo ye-NIJ eziye zavavanywa ngayo.
Uhlobo IV (Umpu wokugqobhoza isikrweqe)
Uhlobo lwe-IV lwesikrweqe esiqinileyo okanye ukufakwa kwepleyiti kuya kuvavanywa kwimeko emiselweyo ngeembumbulu eziyi-.30 zeCaliber Armor piercing (AP) (i-US Military designation M2 AP) enobunzima obuchaziweyo be-10.8 g (166 gr) kunye nesantya esingama-878 m/s. ± 9.1 m/s (2880 ft/s ± 30 ft/s).Isikrweqe sohlobo lwe-IV esibhetyebhetye siya kuvavanywa kuzo zombini iimeko “njengentsha” kunye nemeko ebekiweyo ngeembumbulu .30 ze-AP (igama lomkhosi wase-US M2 AP) kunye ubunzima obuchaziweyo be-10.8 g (166 gr) kunye nesantya se-878 m/s ± 9.1 m/s (2880 ft/s ± 30 ft/s).
Kudidi lwe-IV lwesikrweqe esiqinileyo okanye ukufakwa kwepleyiti eya kuvavanywa njengoyilo oludityanisiweyo, isikrweqe esithambileyo siya kuvavanywa ngokuhambelana nalo mgangatho kwaye sifunyanwe sithobelana njengesikrweqe esizimele sodwa kwinqanaba laso logrogriso elichaziweyo.Indibaniselwano yesikrweqe esibhetyebhetye kunye nesikrweqe esiqinileyo/ipleyiti iya kuthi emva koko ivavanywe njengenkqubo kwaye ifunyanwe ibonelela ngokhuseleko kwinqanaba lenkqubo lezoyikiso elichaziweyo.Izixhobo eziqinileyo ezivunyiweyo ze-NIJ kunye nokufakwa kwepleyiti kufuneka zibhalwe ngokucacileyo njengokubonelela ngokhuseleko lwebhola kuphela xa zinxitywe ngokubambisana ne-NIJ evunyiweyo.isikrweqe esibhetyebhetyeinkqubo abavavanywa ngayo.
Ixesha lokuposa: Mar-09-2024