Why is buried pronounced berried?
Because scribes from the East Midlands pronounced the word with this vowel they tended to spell the word with a u, and this spelling became standard when spellings were fixed after the introduction of printing. Bury is the only word in Modern English with a Midlands spelling and a southeastern pronunciation.
Is Bury pronounced Berry?
The standard (British and American) pronunciations are [ˈberi] and [ˈberid], listen here. Hence, bury is pronounced exactly like berry!