A fixed 2x for me is worthless. 4x is better, and a 2.5-8 is the berries as long as you have a good rest.

I use a 2x like I do a red dot, 75 yards and under. You'll have the same issues at low light with the 2x as you do a red dot. That's my experience anyway. Best of luck with whatever you decide on. That's a great gun in a do all caliber.