The 12.7x42mm is a powerful big bore cartridge designed for use in AR style rifles. The brass case is essentially a lengthened 50 AE (1.650 long) with a rebated 7.62x39 style head. This brass
AR-10 - Brownells Norge
2.4) STARLINE, INC 45-90 WINCHESTER BRASS 100/BAG - Brownells Polska
WFT 2 TRIMMER LITTLE CROW GUNWORKS. 17 REMINGTON FIREBALL TRIM CHAMBER - Brownells Italia
AR-15 KIVÄÄRIN OSAT - Brownells Finland
STARLINE 12.7X42MM BRASS 100/BAG - Brownells UK
STARLINE 12.7X42MM BRASS 100/BAG - Brownells UK
2.4) STARLINE, INC 45-90 WINCHESTER BRASS 100/BAG - Brownells Polska
Hylsor - Brownells Sverige
AR-10 - Brownells Norge
Brownells Svizzera - Il più grande rivenditore di componenti e accessori per armi ed attrezzistica per armieri
Wiederladen - Brownells Deutschland
DIES L.E. WILSON 6XC (II) BUSHING FULL LENGTH DIE - Brownells Italia