A market research between october 11th and 13th, with 2002 electors, showed that between 46,8% and 51,2% would vote "no" (against the gun ban), while 42,8-47,2% would vote "yes". So there is still hope.
It's sad though, because only 8 days from the referendum a lot of people still don't know exactly what they're voting for. Some people still don't know the difference between being able to own a gun and to carry one. Civilians can't carry guns since 2003 (although I believe those who already had the permit can still renew it). If approved, the referendum will allow gun sales only for those who can get the permit to carry them (police, military, etc).
Likewise, we still hear people justifying their vote in favor the gun ban with statements like "I wish guns didn't exist". Guess what? They exist, deal with it. Unfortunately the campaigns both in favor and against the gun ban lack depth and information, appealing to the emotional or showing incomplete statistics.
On a side note, I've read that Glock is waiting authorization from the Army to build a factory here. According to the article they plan to use Brazil as a production and exportation base for Latin America, Africa and part of Asia, especially China. This because the legislation of EU, which Austria is part of, do not allow the sale of armaments to countries in conflict. Unfortunately they have no interest in the civilian market here.
That and the gun ban could result with Taurus moving the whole production to Miami.
(Edit: typo)