You can, but, you should not. The frame is not rated for +P
NO
Smith&Wesson model 14
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.
If you contact Smith & Wesson, they will give you that information.
Thye smith&wesson model 28-2 was chambered for the .357 magnum cartridge.I would say Start with the one round that you and the gun shoot best.Then you can experiment on different weight bullet loads.You may also shoot standard .38 special loads in your model 28.
Needs to be examined by a gunsmith.
No
You need to find a firearms instructor.
Standard Catalog of Smith and Wesson, 3rd, edition
100-375 USD
Stainless Steel Chief's Special
Smith and Wesson Model No. 2