I've used cast bullets up to 180 grains in .38 Special and wasn't impressed with accuracy or velocity. A 200 gr. bullet just seems too heavy for use in a cartridge case like the .38 Special. Some 200 grain bullets may tumble, but I doubt you could count on that happening consistently and you sacrifice considerable velocity over a bullet weight better suited for the .38 Special. Velocity differences often mean little, but when you get down in the 650-700 fps velocity range (with a snub nose gun), velocity may become critical. You may not want to shoot at any hard objects.