A good gunsmith can help you.
Rossi model number 31 had a 4" barrel and was discontinued in 1985. Model 68 came with a 2 or a 3" barrel. There is no model 38 Rossi. Model 88 and 88/2 only came in stainless steel finish. They also had a 2 or 3" barrel. Rossi did make the "Rossi Double Action Revolver" which has no model number. It was 5 round in the 38 special caliber, came with 3 or 6" barrel, adjustable rear sight, fixed ramp style front sight, blued or nickel finish, wood or plastic grips, and was produced from 1965 to 1991. Since you are not able to find the model number, it is very likely this is the gun you have.
As long as the owner's manual doesn't prohibit it.
No, it's a 2nd class lever.
No way to answer without knowing barrel length and gauge.
Requires a gunsmith to look at it.
NOT RECOMMENDED unless you are in a life or death situation.
$1000 - 1500 USD depending on model milled or stamped receiver, fixed or folding stock.
These guns are quite old 46 to 60 years old the barrels can be very difficult to remove they are screwed into the receiver you should be a gunsmith to remove the barrel as fitting a new barrel you will have to make sure that the head space is ok. Most guns of this era had fixed barrel even the early Remington 870 had fixed barrels you will need a barrel vise barrel spanner to start with years of shooting and rust make thes barrels a challenging task
It depends.. if you have a carbine length barrel and will be using it on a rifle with a carbine length barrel, then yes. If you took it from a rifle with a rifle length barrel, and are putting it on a rifle with a carbine length barrel, then it won't function properly.
The fixed choke markings are denoted by * marks on the bottom of the barrel under the forearm assembly. 3 on the left barrel and 4 on the right. *** Modified choke **** Improved Cylinder
$250-$300
Yes, corrections should be date and time-stamped to provide transparency and allow for tracking and verification of changes made. It helps in establishing an accurate timeline and accountability for the corrections made.