Originally Posted by ruggyh

There a 2 different 6.5" models, both are compensated.

Beside the 4" , several other models are currently in production and available.I would suggest byou visit the S&W web site-Revolvers | Smith & Wesson.

There are also several models no longer in production such as the 5"JR (john Ross) which can be found at secondary site such as Gun Brokers.

Every individual has different preference for balance and feel.
I would suggest not only handling them but shooting them if at all before selecting one.

Having shoot all of them and owning most my preference (currently=it has changed over time) is the 6.5" Lew Horton model, then the 7.5" Performance Center followed by the 5" JR. Nothing wrong with the other these just get all my 500 range time right now.

Good luck and be safe
Ruggy