A buddy of mine gave me a Handi chambered for 243cal with a bull barrel (I think anyway). I can't tell, but it starts at about 1.0-1.2" at the chamber and then tapers to about 0.5-0.75" at the muzzle. He got it on a trade and didn't have use for it. My question is, how can I find out who was the original owner, born on date, and whether its been used in a crime. The serial # is as follows: NK457XX. I delete the last two digits since everyone else does too. Any info. would greatly be appreciated. Later.