Tab I have a 4" old 57, pinned and recessed, with lead bullets, shoots like a laser, I prefer 5" barrels, easier to carry, even on the hip and sitting in a car, get the little bit of velocity, but in a very carriable package, It kind of depends on your eyesight, the 8" does have some advantages for sight radius and velocity, but carry is not that easy, I have been playing with 270 grn gas check bullets, get back to you on that experiment.