Value of a S&W .357 Magnum, Model 66-1, stainless with black rubber grip, 1&3/4" barrel, excellent condition?

I put it at between $600 and $800 because of the rare snubnose version

Is that the original barrel length, or did it get shortened?

Don’t sell it as you will regret it 

Excellent condition varies amongst traders, however, just like collecting baseball cards, stamps, and coins there are standards for grading to attach value. (I CAN elaborate because I am well experienced buying guns) I have seen beautiful guns on the outside but worn slap-dab out on the inside. Just saying your description of excellent condition is right on with the grading system then the figures given by others are good.

We, as a country, are experiencing panic buying so worth of being able to protect your family and self is priceless. If my home were ever threatened like some areas, and I had no weapon, then $2000 would be a bargain, but for now....the average $400-$600 is right on.

I would say between $600 and $700.

That is by far one of the best models ever made.  $600 for sure.

That's a keeper you should never sell that weapon.

In todays market where guns are fetching a premium, you've probably got a chance at getting $600. In a stable environment where guns and ammo aren't fetching premium prices, you've probably got a $450 revolver there.