Just as an experiment,TRY 32 ACP in your 327. I was clued in on this YEARS ago by an ex-chief of police. He carried 32acp in his Colt Cobra chambered for 32 long. I have also shot 32 acp in a ruger single six 32 mag. The reason it will work is that the 32acp has a slight rim or more well put,it is a semi-rimmed cartridge. However it is best to try it as your individual gun may have a greater tolerance and it just might not work.
My single six worked with it and a S+W and an old Iver Johnson.