Around $300.00.
What caliber of man are you looking for? What caliber of gun are you looking for?
Caliber "Caliber" is a word for the diameter of the bullet or the bore of the gun.
Your description is of no use. Take it to a gun smith to identify it before a value can be determined.
Caliber (for artillery) is the ratio of the barrel length to the bore diameter. So a 50 caliber 16" gun (Iowa-class) is longer than a 45 caliber gun (North Carolina-class), which gives a higher muzzle velocity, and therefore greater range and penetration.
38 caliber hand gun
No
A small caliber hand gun
gun shops, gun shows, want ads, e-gunparts.com
.500s&w
50-100 USD
50-125
You must provide the model and maker.
25-50 USD
Try e-gunparts.com
Yes. Not the best choice, but yes.
50-100 USD or so