I don't have a chronograph, but for what its worth I have on several occasions had my POI change by a couple inches at 100 yards when switching between boxes of identical Remington ammunition. To me that indicates a fairly noticeable velocity change, though I don't have the means of verifying this. This variation was from box to box, not round to round.
I have never witnessed the same thing with Federal or Winchester brand ammunition. For what its worth.
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If the good lord didnt want me to ride a four wheeler with no shirt on, then how come my nipples grow back after every wipeout?
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