Revolvers are a lot like bees and helicopters, which shouldn't be able to fly but do so very successfully. Revolvers shouldn't shoot as well as they do--but they certainly can and do. I completely agree with Rick's take on the revolver bullet's engravement into the rifling origin prior to release from throat influence having the sealing effect he speaks of, and I would add that such arrangements do MUCH to ensure bullet alignment with the bore as well. When those short little 110 and 125 grain JHPs won't shoot as well as the 140-160 grain bullets of any kind, I suspect the mystery is solved by inconsistent alignment of a too-short bullet not fully engraved prior to release from the throat. I used to work like a rented mule to get the 110 and 125 JHPs to work as well as the 158 grain castings and J-words in my 38s and 357s to whack jacks with. The longer/heavier bullets always shot better at distance. ALWAYS. A couple years of that frustration resulted in me expanding my casting bit beyond the 32 revolvers and autopistols, because the short/light revolver bullets were a %$^#ing waste of time. I still load carry-load duplicators for the 38s and 357s and their 125 grain JHPs, but hold no illusions about their accuracy at any distance for varmint hunting. 2-legged varmints up close is their strong suit.