Have just finished reading an Italian gun magazine which had an interesting article on gun ammunition...particularly calibre size and efficacy.
The article started off with the general assumption of bigger calibre being more effective at neutralizing targets. However it produced a series of physics experiments conducted in the USA and Soviet Union during the Cold War showing that a 5.56 round fired at higher speed would be more effective than the 7.62 round. The theory behind it involved the 5.56 bullet providing greater kinetic energy impact due to its reduced weight but greater velocity.
At the end of the article there was mention of the next generation of assault rifles which would have a bigger casing than the bullet diameter via some sort of patented system. Essentially, a 7.62 casing would be used with a 5.56mm bullet...has anyone heard of this?
Can anyone offer me some clarification in regards to the above as I am slighlty confused...
bigger calibre, smaller calibre, mixture of the two?!!!
Mamma mia my head is exploding?

Ciao,
Ed