No I haven't but from my understanding my little 30-35 grainers won't be very stable with that quick of a twist. I've been told it needed to be at least 1:12, I was looking at 1:14 because that's what my bolt gun is and it loves the light stuff, quarter sized groups. I'm trying to streamline, I got rid of my .308 so I didn't have multiple boxes of .308 bullets and powder floating around now I just upload/download the .300WM with 1 powder and 1 bullet. I'm trying to do the same with the .223