In WW2 the MG42 was feared not only because ofit's sound abut because of the effect it had on human targets, it tended to remove limbs a lot.
The reason is not it's caliber (it was only 7.62 if i remember correctly) but because of it's ROF (1100 RPM!!! for a machine gun) it simply sawed them off.
<BLOCKQUOTE><font size="-1">quote:</font><HR>The skillful warriors in ancient times first made themselves invincible and then awaited the enemy's moment of vulnerability. Invincibility depends on oneself, but the enemy' vulnerability on himself. It follows that those skilled in war can make themselves invincible but cannot cause an enemy to be certainly vulnerable. Therefore, it can be said that, one may know how to win, but cannot necessarily do so.[/quote] -Sun Tzu, The art of war.