I'm assuming the P223 is like the P300. I know there are more version of the P223. There is only one of the P300. Generally, they seem similar.
I bought a p300. It was under $200 vs $1600 for the Leupold Mark 4 MR/T scope with the 300 BLK reticle. The Nikon reviewed OK. Foghorn had a review as did gunsumerreports. ( I shoot a 300 ACC Blackout and 458 Socom in AR)
Gear Review: Nikon P-300 BLK Riflescope | The Truth About Guns
Nikon P-300BLK Scope Review
Nikon has an online site, no pun intended, that provides for ballistic solutions (i.e., ballistic tables and cards) for non-default loads and rifles. You can still use the ballistic dots when loading something different or when putting the scope on a different gun. You just print out a card with your distances on them.
Nikon Spot On™ Ballistic Match Technology Program
The p223 is a second focal plain scope the Leupold is a first focal plain scope. I don't know if that matters to you. (The Nikon site will give ranges at different magnifications too)