Ok Help me understand it all for I am somewhat knew to this family of rifles. Is the difference between ak-47 and 74 the 7.62mm and the 5.56mm(.223), if this is so, is the Romanian SAR3 a comparable piece to the 74??Thanks MP:usa:
After the success of the US's 5.56mm, Russia developed a similar round in 5.??mm. It is not the same as the 5.56 NATO/.223 Remington (which aren't the exact same either). It also has a steel core (like the military 7.62x39), but does not have the explosive damage in soft tissue as the US's 5.56 FMJ.