Not quite correct.
Any C&R gun you get while you have an 03, whether you use it or not, must be entered into your boundbook.
The question was whether a gun purchased PRIOR to obtaining the C&R had to be logged into the bound book.
You do not have to enter any C&R guns you own before you get an 03 unless/until you dispose of them. At that time you must enter it as "Previously Owned" and then you can log it out.
Back off, Hawg, I have no problem reading and understanding standard English. Any and all C&R eligible weapons that are acquired while you possess an 03 must be logged in, whether or not you used the FFL to purchase it, AND any prior C&R purchases must be logged in for disposal. That last bit was not stated in the 2nd post, and could be important info for the OP.
Got any issues with that???
Dino, the reason you log out pre-FFL03 firearms is because the FFL03 is there to regulate transfers of Curio & Relic arms, not their ownership. Transfers that occur, either into or out of your possession, while your FFL03 is current, are subject to the regulations. If you already owned it before FFL03 came around, there was no transfer, and not subject to the requirements. The transfer occurs when it leaves your collection.