Please provide a link as I don't think that is correct. Romney's NRA rating is a "B" and Kayne Robinson is not opposed to working with him as POTUS. I imagine their electability ratings would be in reverse. And then, the question is: Would you want Hillary, Edwards or Obama (all gun-grabbing F's) or Romney with his B?
Romney on guns:
Americans should have the right to own and possess firearms as guaranteed under the U.S. Constitution. Im proud to be among the many decent, law-abiding men and women who safely use firearms. - Governor Mitt Romney, 01-12-2007,2005
Also, in 2005, Romney designated May 7 as The Right to Bear Arms Day in Massachusetts to honor the right of decent, law-abiding citizens to own and use firearms in defense of their families, persons, and property and for all lawful purposes, including the common defense.
http://www.davekopel.com/NRO/2002/Second-Amendment-Voting-Guide.htm
I haven't used the NRA's rating in a decade. They care more for "hunting" than for actual Second Amendment Rights.
Governor Mitt Romney and Firearms Policy According to his 2002 gubernatorial campaign, Romney is a supporter of the federal assault weapons ban. Mitt also believes in the rights of those who hunt to responsibly own and use firearms. July 1st, 2002 Mitt Romney signed a permanent ban on Assault Weapons. Deadly assault weapons have no place in Massachusetts, Romney said, at a bill signing ceremony with legislators, sportsmens groups and gun safety advocates. These guns are not made for recreation or self-defense. They are instruments of destruction with the sole purpose of hunting down and killing people.
Whoops... So much for Mitt having a clue about what the Second Amendment is for.