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RCS
03-10-2010, 07:27
three of these cartridges are Russian, can you name them ?
Bolt2bounce
03-10-2010, 11:10
7.62X39, 220 Russian 5.45X39.. what do I win.?? :1948: B2B
RCS
03-11-2010, 04:16
Can you guess the remaining cartridge ?
Brian Davis
03-11-2010, 07:51
Can you guess the remaining cartridge ?

This is a WAG but might that happen to be a .222 Remington?
RCS
03-11-2010, 08:01
The 4th cartridge is not US but a few AR-15's were chambered for them by the military
Bolt2bounce
03-13-2010, 07:56
No I got 3-4 I'm quitting while I'm ahead.. not a us cartridge and chambered in the AR-15?? maybe a 222 rem magnum but that would be a US cartridge.. Looks like a 20 cal or 17 tracer.. B2B
RCS
03-14-2010, 05:28
Take the 5.56mm and extended the length to 49mm and neck it down to 19 cal. Chamber it in a AR-18 bullpup
Bolt2bounce
03-14-2010, 08:12
Man Am I good or what, looks like a 20 cal.. it was a 19.. :banana100: I like the AR-180 /18 B2B
RCS
03-15-2010, 06:00
The 4th cartridge is the British (1977) 4,85x49mm that was used in the SA80-IW rifle (bullpup). This cartridge had both a better range and ballistics than the 5.56x45mm NATO cartridge at that time - but the 5.56mm was upgraded and the 4.85mm was dropped. The British still use a variation of the SA80 today chambered for the 5.56mm