I'm going to throw a wrench out and guess it's the bi pod. Unless that rifle came with the Bushnell Banner scope. Then it's more than likely the scope. If you got the deal with the Nikon it's pretty doubtful it's the scope. As bpd said, try bagging it before anything else. Take the Pod off, bag it, that may very well solve your problem. I've seen/had a couple rifles that just wouldn't group worth a damn shooting off a pod but were insanely accurate off a bag. Some cheap tupperware stocks just don't react well to the pod attached. And causes some flexing in the stock which will greatly affect accuracy.