My understanding is its the date of purchase(when you paid for the gun and filled out the forms). I don't think they really have any way of tracking when you pick it up from the dealer anyway, unless they have a trooper drive to their shop and dig through their paperwork.
Wrong. 30 days starts at pick up. Become a designated collector and it will do away with 30 day wait. Or you can buy as many as you want now but pick ups will be released every 30 days
Does this apply to C&C weapons such as a Marlin 60? I have a handgun in the queue. Or is it only regulated firearms?
I suppose with a > 61 day wait it doesn't really matter, because I can wait 30 days from date of purchase, pick up the weapon, and then the ND will come after the 30 day wait from the C&C firearm.