We are talking 38 special auto and some 38 autos aren't supported on the bottom of the case enough to go over 3.1 of bullseye. If the case ruptures it can blow the stocks off or the mag down. You can inspect your cases to see if there is swelling at the rear. You can't compare anything else to 38 auto pistol. Berry's makes a fine plated bullet<I have some> but they are not accurate as lead in a 38 auto.