Ok guys, let me start by saying I love mine. I've used it before with no problems, but my new rifle showed up and can not get any readings. It is an aluminum tensioned 1" dia. My first thought, it is too big. I'm 22 cal 75gr H-BTHP. If that is the case, would the V3 solve this, and can I still use it for my sporter barrel rifles? Thanks gents.