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The report found that there are about 1.8 million dead people listed as active voters. Some 2.8 million people have active registrations in more than one state. And 12 million registrations have errors serious enough to make it unlikely that mailings based on them will reach voters. - New York Times

Rhode Island voter rolls inaccurately contain 150,000 people that they should not, according to the secretary of state. - Washington Free Beacon

Also check out this report from Judicial Watch

Why would a gun registration system be any more accurate then the voter registration system. With so many errors and inaccuracies, you would have to question how effective such a gun register would be.

Demands for accurate voting rolls from the government seems to fall on deaf ears.