lighter bullet and more ammo can be carried as opposed to the 30/06 or 308
There are many brands of 556 ammo available. Some of the better rated ones by users include Barnes and Hornday. Both have great user ratings for hits and shots fired.
Yes the mags work with both ammos. You can not tell the difference in the two by looking at them.
556
For humans the average size is 1"x 3"x 5". Assuming that your "556" means '5x5x6', that size indicates that its owner may be suffering from one of the many diseases or infections that cause the spleen to enlarge.
556 * 556 = 309,136
556 = 55,600%
why you asking me 556-thousands = 556/1000 = 0.556 as a decimal
70% of 556 is 389.2. Which means that 166.8 is 30% of 556.
I assume that you are referring to 5.56mm in your question?,if so yes you can shoot this ammo in your rifle.The 5.56mm is the metric designation for the .223 Remington cartridge.
556
It is: 556 = DLVI