Reeded Jefferson Nickel 2000-P Matte/Satin Surfaces

Some added info: the original post was long enough, so I'm going to seperate some added information in this follow-up. The coin is 5.01 g, just as it should be but when I took it out of the flip to put it into an air-tite for easier handling & viewing, the coin was too big. My coin calipers disappeared about the time one of my daughters went back to college after spring break [ ] so I can't say how much "too big" it is.

Also, I went on ebay after I did the original post and some of the singles for that date and mint also had the dull (matte) phenotype while others had the typical shiny version.

Those oblique ridges represent damage from a coin-wrapping or coin-sorting machine. They often appear on oversized coins like yours (you have a broadstrike).

Henning's revenge?

Nah, I like mikediamond's explanation. The matte surfaces plus weird strike threw me off, but it makes sense that a slight broadstrike might cause some form of damage when going through a machine. A neat curiosity.