[johnm1]

I carry a 638 (older version w/the shrouded hammer and aluminum frame). I am not an expert but do have some experience. Snubs are very difficult to shoot well. If at all possible try rent one at a local range and shoot it first. Most indoor ranges rent guns. The rental isn't expensive but the range ammo you have to buy is. Think of it as an outing and don't think about the cost.

When I did this I was able to elominate a snub .357 for purchase. +P is hard on the hand in a revolver this light.

I don't want to discourage you. It is a great platform but difficult to control in an aluminum frame. S and W does make one with a steel frame that might be more appropriate recoil wise. Good luck.