Can anyone tell me what scope base is on the PBR. The one that came on mine is a one piece and looks to be slanted. I am having some trouble sighting in my scope and need to know what base is on the rifle. My scope is marked 1/8 MOA per click but there are 10 clicks between each number. My scope is marked 0-60. I have heard that some of the mounts are 20 MOA already but do not know about mine.