In the rest of the world the "SLR" is referred to as a "FAL" and it's 7.62x51mm / .308 Winchester ammunition is a "medium" caliber firearm. Quite a bit weaker

In the rest of the world the "SLR" is referred to as a "FAL" and it's 7.62x51mm / .308 Winchester ammunition is a "medium" caliber firearm. Quite a bit weaker than what was used commonly in WW1/WW2 but stronger than the standard 5.56mm / .223 Remington round that is used today by the armed forces. It's still a very common round and used in various applications around the world. "Quite a long time" is a bit of fear pandering, it's what you would use to kill a deer humanely. Any sort of a firearm is dangerous when used against people massed in tight quarters.