I have a Nordic dedicated upper. It's a hammer.

https://nordiccomp.com/categories/nc-22rb-upper/

Zach O and I were out with it a couple of months ago shooting at a 6" plate at 300 yards. We literally never missed once we got the wind dialed in. It's heavy, so it feels like a real AR. I also have a 15-22, and it's fun to shoot, too. I use my Nordic as a precision trainer for my competition AR, and it fills that role perfectly. I use the 15-22 for steel challenge shooting, and it's great for that.

The Nordic likes to be clean. I generally shoot dirty Eley ammo (dirty but accurate), and it likes to have the action scrubbed out every 200 rounds or less or it starts to malfunction. I've never yet cleaned the 15-22, and it runs like a sewing machine.