I have an SP101 in 327.
I don't shoot 32S&W or S&W Long to avoid a carbon ring that could raise the pressure on an already high pressure round.
32 H&R Magnum has almost the same length so I shoot it sometimes.
The 327 gives serious ballistic performance with little felt recoil in the SP101,making a followup shot that much easier.It's also acurate and flat shooting.
I like to think of it as a modernized version of the32-20.
that round had legs for a long time.