establish a national data base of rifling marks on bullets tied to the weapons serial# for all new and registered guns.

a national data base for both new and previosly registered weapons, of rifling marks of bullets tied to the weapons serial#.understanding that while these marks may change minutely,they are as valid as finger prints.if you modify your barrel you are liable.if you loan your weapon
you are liable for its use.if it is stolen it must be reported.
if it is sold ditto.