diesel, if your rifle is spitting them that far, enough gas is coming into the mechanism to damage the rifle.... and you don't want that.
As far as dents in the cases are concerned, remember that when they go up the spout the next time and you fire them, the dents BLOW OUT harmlessly, the cartridge fires perfectly.... and the rifle then puts a NEW dent into the casing as it ejects the thing. Bad point here is that you just can't win. Good point is that you only have one dent at a time!
Same goes for the hammered-in fluting on brass from the fluted chamber. It irons out when you resize the brass, just leaves a bit of scorching so you can see that it was there. Next time you fire the cartridge, you get a whole new set of flutes on your brass.
Think about the ORDER in which things occur and you'll understand.
Most important of all: have fun!
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