You have to tell us good for what purpose. Hunting, self dense, target shooting, etc. No such thing as good for everything.
22LR
A VERY good handgun- for most puposes. Durable, reliable, accurate, and powerful.
No
by law any handgun that has had the serial number removed is an illegal pistol. good for parts
Needs to be checked out by a good gunsmith
A good handgun.
No- it is a better handgun round.
A good guide is the "Blue Book of Gun Values."
S&W Model 16, Colt
300 or so
Needs to be checked over by a gunsmith.
200