Not trying to "read' into any regulations. I've made three inquirys to the BATF about transfer of firearms on my C & R and all three times all they were concerned about was "is the firearm in question over 50 yrs old", all it had to do was meet one requirement. It all up to the seller if he want to accept the C & R for transfer. Well respected arms dealer in the northeast Joe Salter transfers mauser 98 actions on C & R, stated on his web site. Not trying to start a pissing match but there seems to be some gray areas.
Bob