I have two log books. One book for guns purchased before I got a C&R and then one for guns bought under C&R. I figured if there was any question that two books should satisfy the BATF. I am sure that most if not all the earlier guns could be confirmed with effort by the FFL who recorded that transaction but figured that it was simpler to keep good records of my own.

I have never heard any horror stories about C&R inspections. I have heard of people unwisely trying to use a C&R to do business for profit and pretend to be a hobby or collector. Worse for them were the sales taxes and income taxes that they had not paid and were required to pay with interest and penalities. Stupid people do stupid things.

My local leagal law enforcement officer has been a bit of a jerk about my C&R. He thought that he should have the right to inspect my collections, at his discretion and whim. I explained that he was welcome to inspect with proper paper work in hand, or he could just contact BATF and have them do it for them. That made him very cross. When he complaind to the mayor, his boss, he was told to either get a warrent if he had cause or quit bothering me. It might have helped that the Mayor my next door neighbor, had just visited me and seem most of my accumulation. That has been over two years ago and he has not bothered me since. I do make sure I drive the speed limit in town. Some people have sharp knives and longer memories.