Id like to hear the reason why here.
Machingunning your opponent a) runs you out of ammo, b) endangers everyone else as the probability of rounds that miss their target increases, c) if there is more than one opponent what do you think the other guy is gonna be doing while you are doing this? And d) in the time it takes to 'machinegun' someone you could have made fewer but more accurate hits. And it's hits that count, good and powerful hits.
And Jeff Cooper is the very one who opined against machinegunning as such.