Go to this site, they can help you out with any questions you have. I am not going to say for sure the fix is easy, or that there is one for sure. I just thought I remembered reading something about it. I don't own a centerfire but was thinking about getting one in that caliber and was warned of this problem.
Greabeard Outdoors forum
About half way down there is a section dedicated to H&R/NEF. Look in the Centerfire rifle section. You can search for it, or just ask someone.
I currently own a H&R ultra slug hunter deluxe and am happy with it.