Normally speaking, the extractor works good enough to extract the spent case from the chamber and throw it upwards. When the extractor spring is somewhat weakened, the case will indeed bounce off the receiver rail during extraction, leaving a small v-shaped dent in the case mouth.
I had a P.08 that had difficulty extracting and it would mostly throw the spent cases in my face or on my head. Replaced the extractor spring and the cases happily landed on top of the cealing of the shooting stand
