/johnny
There are comments about this in the article. From what I understand the stormtroopers during the Clone Wars was the clone of Jango Fett but after that task was done and the Jedi was eliminated the Imperial forces recruited volunteers across the Empire. For what reason I am not sure if say the Empire did not want to be dependent on a single source for manpower or some theory about making copies and copies resulted in deterioration of the clones.
In the early days they were but in the days of Han Solo and friends they were largely conscripts and volunteers.
I never did like that twist.
Yep, according to "official" Star Wars lore, the corps of Imperial Stormtroopers are clones of the interstellar bounty hunter Bobba Fett, and it shows, as the markmanship level is identical...
the infowarrior