Don't have a pic, but really, it looks the same as other rifling. Might be a bit more pronounced. Pretty sure Glocks are the same way rifling wise, might be able to get a glimpse at a gun shop.
But...it is very effective. In my Desert Eagle, I have to be very aware of the jacket thickness on my reloads. A few rainiers through it, and the slide started leading up! I almost turned it into a single shot in about 6 rounds!! (Mark I .357)
