You are correct. it is well established that you need a pin like that when using mousey loads like .38 Special. You can't actually hurt much with a .38 unless it's somehow tricked out with a pin. I'm afraid that all of us marching around with .38 Specials in our pockets need to rethink the caliber, we can't possibly defend ourselves with those guns....and the pig LIVES! You just don't know it!