In my wandering around the web seeking enlightenment toward a good balance between ammunition, rifle & marksperson (of which only the first two are variable, I’m stuck with the third I’m afraid)
I stumbled across the;
‘History and Basic Design of the .223 and 5.56 ammunition’.
It is a lightly written, very through, 53
page pdf download about more than you every thought to ask:
It goes into purpose, choices, barrels, effects, legal and other issues. It might take a short while to down load. If you just want to bookmark the website, here is the link to the first page:
There are different ‘Chapters’ listed on the left side column.
It is very well done and credit should go to Troy Tiscareno, Tatjana von E & Derek F.
I’m posting it here instead of ‘Ammunition’ because it refers mostly to use in AR 15s.
Maybe it should be stickied?