Since when is Romney a conservative? Wasn’t he the Governor of Mass? Didn’t he sign an “assault weapons” ban?
Romney's gun bill didn't ban any new weapons. The guns that were banned would have remained banned if Romney had signed the bill or not. Romney's bill was actually SUPPORTED by the NRA because it actually relaxed some of the existing restrictions.
It really was a damned if you do and damned if you don't bill. If Romney had vetoed it the same people that are complaining about him signing it would be complaining that he vetoed it.
Remember, your choices are Mitt (NRA "B"), McCain (NRA "C+"), Obama (NRA "F") and Hillary (NRA "F").
Romney is a conservative. He signed a bill pushed by the pro-gun lobby which eased restrictions on gun owners AND removed some weapons from an existing Assault Weapons ban. So in fact he did NOT ban any new weapons, repealled a ban on SOME weapons, and helped gun owners.