I've got two and they work okay with .327 Federal ammo. Granted, I haven't shot thousands of rounds down range with them, but have a lot with both .32 H&R magnum, .32 S&W Longs, but have shot enough of the .327s in Federal guise to know the gun is holding up this far and having no extraction problems.
That's because the guns get a good scrubbing after each range session. The cylinders get a thorough scrub job inside the cylinder charge holes.
I've had no extraction problems with .327 ammo for several cylinders worth of ammo. With the tolerances being as tight on the Taurus 327 as it is like the rimfire versions can have grit and grime collect very fast. That happens with small parts revolvers as a whole.
The .327 Federal ammo was shot first through the revolver. Then the lesser powered rounds were next.