Malcolm Turnbull is now less popular than Tony Abbott at the time he was dumped, with the prime minister's satisfaction rating just 29 per cent in a new poll.

In Tuesday's Newspoll in The Australian, Mr Turnbull's support is below Mr Abbott's final approval rating of 30 per cent in September 2015.

The poll shows Labor has retained a lead over the Coalition, with 52 per cent two-party preferred support compared with the Coalition's 48 per cent.

Taken between Thursday last week and Sunday, the results followed another turbulent week for the government, including a bitter public dispute between Mr Turnbull and Mr Abbott over the importation ban on the high-powered Adler shotgun and Liberal Party wrangling over NSW reform plans.