My CCW revolver is 24 oz. The revolver model I actually wanted, but couldn't find for sale anywhere back in March, is just under 26 oz. They're both solid steel, "stretch snubby" models with 3" barrels. After experience shooting them, I wouldn't want to have to handle anything smaller/lighter with .357 loads, although could probably manage .38 +P loads with a lighter gun.
After carrying for a couple of months, I also wouldn't want anything much larger/heavier for concealed carry. I don't think I could easily conceal it during the summers. For open carry, I wouldn't mind a full-sized steel revolver -- S&W K-Frame or L-Frame size.