I have a Taurus Tracker in SS with 6 1/2 in barrel in .357 this is a great gun shoots 2'' at 50ft w/ iron sights. The ribber grip is great, it soaks up all the recoil and the porting keeps the muzzle down. I shoot 158 gr swc lead (4.5gr bullseye) and 158 gr hornady xtp jhp pushed by 7gr bullseye(hot load). The cylinder has a detent latch at the front and the regular latch at the rear. this holds the cylinder real well. I paid $390for it last dec.
I also work with a gut who has a 4" barrel that shoots just as good.
The 6 1/2" has a vent rib the 4" does not....and it is 7 shot