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I assume our 250s have a full-flow oil filter system, but I guess I've never verified that. Assuming so, chips in the sump from a threading tap can't get into the engine's bearings. If they're nasty enough I guess the oil pump may not like them though. Hopefully it's fine and you have plenty of oil pressure.
Those chips are the reason I don't trust the old "grease the tap" method that you hear recommended so often.
As 59096 said, it's also not unusual to find a little debris on the screen. Mine had a little the first time I changed the filter.
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