Very interesting and thanks! The last time I talked with Marshal it sounded like the 165 needed a 1-8 so I was a little worried about getting them to run out of the 1-9 I have, we may have switched to the 175 in our conversation without me knowing it, looks like I'm GTG!!!
I have a 1 in 9 load work up on my gun is using 169.5 wildcats. I tried the 165 Matrix I was vary impressed out of the first three shoots they grouped less then a half inch @ 100, then we moved to the 500 yard gong connected every shot then to 930 connected 2 out of 3 on a 12 x16" gong just using the same powder charge & seating depth as the wildcats. with some load tuning im sure they will even do better. so in my 1 in 9 they seem to work good.