Only if the owner's manual says so.
You should contact Smith and Wesson directly to get the correct answer to your question.
Not recommended
1. It can, but, it is not advised. 2. It is stated by Smith and Wesson that the model 14-3, which is the third change of the model 14 can safely shoot plus P ammunition.
Yes
NO
Mid 80's. Call S&W and they will tell you when it left the factory. Standard Catalog of Smith and Wesson, 3rd edition.
You must contact S&W to get a correct answer.
Steady use is not recommended
New $650.00 plus (uncle Sam) Tax.
You must contact S&W to verify
50-450 usd
No