Info needed on the Bushmaster .223 - yes I researched & no this is not pro or anti

[FarCenter]

17. The .308 and .300 Win Mag are typical hunting rounds

The .308 is suitable for non-dangerous big game such as deer, black bear, antelope, etc.

The .300 Win Mag is suitable for moose, grizzly bear, lion, etc. although a larger caliber like .358 Win Mag would be better for the largest game, such as Cape Buffalo.

The 5.56 started life as a variant of the .222 Remington which was developed for shooting small animals at long range, e.g. woodchucks, prarie dogs and the like.

The 7.62 is the Russian ammunition for the AK-47. Although the US and other militaries used to use 7.62 mm ammunition, such as the .30-06 Springfield (.30 caliber developed in 1906 at the Springfield, MA arsenal), the weight and recoil of such ammunition limited the number of rounds that a soldier could carry and the accuracy of fully automatic or burst fire. This was seen as important in firefights in jungle or urban settings where a high rate of fire and short distances are the norm. In settings like Afghanistan, there has been some reintroduction of .30 and higher caliber weapons, particularly for long range sniping and for use against body armored personnel and lightly armored vehicles.

The .50 BMG is the .50 Browning Machine Gun round used in heavy machine guns.