My brother put a Vortex Viper FFP G2 6-24(x50?) on the same rifle. The first time out ringing steel at 400 got boring quickly. He's real happy with the combo.
Now we just need to find a place to stretch it out further.
You should absolutely NOT regret that. You are up in the tier one scopes with the NF. I have owned or been behind scopes from S&B, NF, Kahles, US Optic, Vortex Razor. At this level, it becomes personal preference, and reticle.
You will not be lacking anything in the NF ATACR.
If you are just shooting 100 to 600 meters get the Vortex Razor gen 1. Still a great scope loads of travel and if you get it from Mile high Shooting they give you the Spuhr mount of your choice. I think the combo is about $1700. Use one on my AI-AE 308 shooting out over 1000 Yards all the time with no issues.