Illinois Department of Corrections (IDOC) still rocks wheelers. This is my attempt to copy their rig:
They use Smith & Wesson Model 64s, basketweave black leather holsters, and speedloaders. I recently had the opportunity to witness some of their inmate transportation officers carrying these on a detail in Southern Illinois.
While the revolver isn't the best choice for a front line beat cop, they still have their place in lower threat law enforcement duties. They are also excellent civillian personal defenders.
Six for sure. Long live the wheel gun!