Have played with lots of options. Does size matter? I liked the Mk5 3.6-18x44 with the illuminated tmr. Was thick enough to used at the bottom end, but I didn't like the 35mm tube. The ATACR 4-16x42 is great, but again 34mm tube. I kept the ATACR 4-16x42 over the Mk5 3.6-18x44. I currently have the ATACR 4-16x42 on my 300wsm hunting rifle.
Also have a couple of the Vortex Razor LHT 3-15x42, and they are ok so far. I haven't used them enough to be comfortable with the durability yet. My youngest also seems to struggle with the eye box. Not a problem for my wife or older boys, but worth mentioning. The Vortex Razor LHT 3-15x42 is going to be a main stay on my wife's hunting rifle.
My favorite scope is the NXS 2.5-10x42, I have one on my main hunting rifle and just bought another one to go on my 12yo's rifle. I shoot mine out to 1000yds on steel and have shot deer at just over 500yds.
I am going to try out a nx8 4-32 but owned the NX8 2.5-20 and got rid of it because the reticle was just too thin at the bottom end.
