I'd go for mini mags from an m&p from that range just cause it's decent and won't drop as much. I doubt the mp22 is going to be super accurate. I haven't shot a ton from that far, but have managed a sub MOA group with a built up 10-22 using CCI SV. Stuff probably drops 7" from that far away though. You can see the bullet hit through a 12-16x scope.