 With the rifle, I did the same thing at 100 yards. And I'm planning on pushing the rifle out to see how it performs at 300. Yeah, I'm afraid you're going to find that little bullet is not going to do great at 300. Wind would affect it significantly. And also, you're going to be giving up energy really fast with that. The .223 is going to actually perform better at 300. But you already know that, I suspect. Oh, yeah. I just want to try the 300 as a challenge.