Lee 6 Cavity Bullet block produces a .358 diameter 158 grain Semi Wad Cutter bullet suitable for cartridges like 38 Special, 38 S and W, 38 Colt New Police, 357 Mag. Bullet Mold lube and handles sold separately. Ballistic Coefficient .207. Bullet Overall Length = .710 inches. Distance from the bullet nose to the top edge of the first driving ring = .245 inches.