A round is the entire package, primer, brass, powder, and bullet. Being a "girl" has no bearing, some girls know about gun stuff. It's just not in your wheelhouse, sex has nothing to do with it. There are guys who don't know stuff about guns, either. I know, have had some spirited discussions here with them.
As far as military/civilian bullets, a full metal jacket (FMJ) bullet is primarily used by the military, as per the Hague convention, IIRC the governing body correctly. Soft point/hollow point bullets are not allowed, due do the excessive damage/suffering clause. The only HP bullet allowed to be used, is a match tipped bullet (sniper), as the hollow point is a result of the manufacturing process, not made to expand like a HP hunting round. The only "round" difference, is the civilian .223/5.56 military. The .223 actually runs at a lower pressure than the 5.56, even though exterior dimensions are identical. A rifle chambered in .223 is usually not recommended to fire 5.56, due to pressure concerns, but a 5.56 can fire either, no problem. (Has to do with the way the chamber in the barrel is cut.) Hope this wasn't a TMI post, but I feel people can make more informed decisions, well, if they have more info to decide on.
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