Long story short, while applying for a C&R License, I had a few conversations with an agent from the FBI. This agent was able to read me a list of all firearms I have bought from a FFL dealer, back at least 20 years.
#1. Why would you have conversations with an FBI aghent when applying for a C&R. It's handled by the BATF! Very simple form, and easy to follow instructions.
#2. With the Federal laws as stated, if an FBI agent could
access a national list, why would he divulge it to you?
Are you sure it was an FBI agent, or was it somebody from the Peoples Republic of Illinois? With the laws in your state, I don't doubt that there isn't a list of every firearm, and every bit of ammunition you've ever purchased!