The zero is on. I zero all my AR's at 50 and verify them out to distance. This particular one has the Aimpoint (which I am not using at night) zero'd at 50 which puts me about 1.5" high at 100 yards, dead on at 200 yards, and about 4" low at 300 yards. Bottom line is that within 100 yards the POI is within an inch of POA and the laser witnessed with the dot plus the couple inches of mechanical offset. I have verified on paper and steel.
Again, not to boast or claim to be the best marksman but I have a lot of time operating an AR, this one in particular, and have proven to be pretty accurate with it. I understand mechanical offsets and have practiced/trained at all distances from 10 yards on out and have a pretty good understanding.
I'm not doubting however that shot placement could have been off. Even though these critters are pretty still for me on the first shot it is a bit different working with a laser and a NV eyepiece strapped to my helmet. Plus depth perception is non existent. I have a pretty good idea distance though based off of trees and other small markers I can compare to.
I'd take them with my .260 at distance but it isn't set up for the NV, I don't run it suppressed, and that is a hot round to launch around here. I'm in the country but don't want to risk a round going where it shouldn't. If I had a simple way to throw an IR laser on my shotty I'd probably take them with that honestly.