I have shot the No Excuse out of my Knight rifles. My Wolverine did a pretty good job but I had to push the conical hard and in that little rifle, it was all I wanted to handle. In my Knight Disc they shot good one day and then next day not so good. So I blame myself actually. The No Excuses are .503 or.500 in diameter I believe. I personally like the 495 grain, but the 460 shoot fine too. The NE are very well made. They also shot FANTASTIC out of my T/C Black Diamond XR.