from: Dangerous Minds
Here’s what Wikipedia has to say regarding the Bullet bra’s history:
Military terminology crept into product marketing, as represented by the highly structured, conically pointed Torpedo or Bullet bra, designed for “maximum projection”. The bullet bra was worn by the Sweater Girl, a busty and wholesome “girl next door” whose tight-fitting outer garments accentuated her artificially enhanced curves.It appears the Bullet bra and Sweater Girl fad died out around the 1960s due to cultural changes including “counterculture, the Civil Rights Movement and the concept of free love that emerged in the United States.”