I had some .358 Dia 9mm that did not work out and I used them in my 38 special, to shoot after a lead bullet session to clean the barrel.
They were 125gr RN coated and I used a standard OAL but I would think that a little longer OAL just short of a 158 gr. Lead RN bullet Spec. would also work.

Maybe try a OAL of 1.50" and see if your groups tighten up ?