Not recommended
You should contact Smith and Wesson directly to get the correct answer to your question.
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.
Only if the owner's manual says so.
You must contact S&W to get a correct answer.
Steady use is not recommended
You must contact S&W to verify
New $650.00 plus (uncle Sam) Tax.
50-450 usd
No