Wadcutters are used for target shooting because of the large for caliber surface area to engage the rifling. Also a wadcutter cuts a clean hole in paper. In theory, a full wadcutter may be more accurate than other styles, but in real life, it's not all that much better. I have been reloading 38 Special since '69 and tried almost every type bullet available and settled on two; cast DEWC and cast 160 gr SWC. Each has it's good points, and each has it's bad points, but for all intents and purposes,they are the same accuracy wise...