Absolutely not unusual, and to be expected. Two bullets off the same production line can vary in length too, enough to produce slightly different points of impact. That's why you measure and sort if you're looking for extreme accuracy.
And two different bullets may want to be seated differently with regard to distance off, or into the lands. You just have to experiment.
Just a warning though; you're about to step into the rabbit hole of hand loading. Welcome to the addiction!
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