Basically they are the same. But a long Barrel and a long shoulder stock make a gun a Rifle.
Chipmunk
Gun can refer to a long gun or a hand gun. A rifle is very particular. It has to have grooved barrel which spin the bullet when it is going down the barrel. This spin action on the bullet makes it more accurate.
no one.
Deff a sniper rifle
The Winchester Rifle.
This gun is a Rifle
The Winchester Rifle.
To find out how old a Winchester rifle is one would need to take the rifle to an appraiser or gun shop. The gun shop will be able to look up the gun by the serial number.
Gun shows, gun shops. A very common rifle cartridge.
The semi-auto rifle
Need detailed description of all markings to answer. Also, you might try Blue Book of Gun Values
The rifle