Thanks for taking time to reply.
So to clarify the responses to my scenario if I obtained a '03 FFL after the purchase of non-C&R "Firearm A", the year "Firearm A" becomes C&R eligible, I don't need to log it as a receipt?
The moment I sell "Firearm A", which has become a C&R, I log it as a disposition. So my log would have "Firearm A" with a disposition but no receipt?
OR
If I obtained a '03 FFL after the purchase of non-C&R "Firearm A", the year "Firearm A" becomes C&R eligible, I do need to log it as a receipt? The moment I sell "Firearm A", which has become a C&R, I log it as a disposition. So my log would have "Firearm A" with a disposition and receipt?
OR
If I obtained a '03 FFL after the purchase of non-C&R "Firearm A", the year "Firearm A" becomes C&R eligible, I don't need to log it as a receipt? The moment I sell "Firearm A", which has become a C&R, I don't need to log it as a disposition. So my log would have no entries for "Firearm A"?
Regarding, "According to the ATF agent he had to document those acquisitions as well because he got a discount because of the license. Also, they told him to document all of his firearms in the bound book", wow I didn't know that.
Once you get your 03 FFL, log all currently owned C&R firearms along with accurate acquisition information (when, where, from whom, justification for it being C&R like copy of ATF book with it, etc.).
When the subject non-C&R firearm "crosses over" and becomes a C&R, do the same thing: enter it in the book with all acquisition details.
Now you are set if you transfer any of these C&R's.
Remember, even if you acquired them outside of your C&R license, enter them in the book and annotate them as such.
Then if you transfer them, you'll do a regular transfer like any other non-C&R firearm for those acquired outside the 03 license.
All those added to the collection under the 03 FFL will be transferred appropriately. The bound book takes the place of the ATF form 4473, so you won't have to do the 4473 for any sale to non-licensed buyers.
Lot's of if-then-elses.
Summary: Once you have the C&R FFL, you must log ALL C&R firearms you have in your possession regardless of when/how you got them. Do that, and the rest is going to be based on the situation.
If you transfer a C&R to a buyer in another state, you'll still have to ship to a dealer FFL there for an unlicensed buyer. If you are selling to another C&R licensee, you can ship to him directly. For in-state transfers, it's your duty to ensure the transfer follows state law, such as permit to acquire, waiting period, etc.