How did Metallica’s 1991 album debut on the US Billboard 200 chart?

Metallica’s 1991 album debuted at number one on the US Billboard 200 chart.

This was the band’s first album to reach the top position on that chart. Its arrival followed the lead single “Enter Sandman” and reflected the broad appeal of the album’s more streamlined songwriting and highly polished production.

The album sold 598,000 copies in its first US week and became a major commercial breakthrough for a heavy metal release. It remained at number one for four weeks, helping establish Metallica as a mainstream stadium act rather than only a successful underground or genre-focused band.

The chart achievement is sometimes confused with the album’s first-week sales figure. The sales number describes units sold during its opening week; the chart position describes its ranking against other albums. Both facts are connected, but they answer different questions.