I understand. The targets I see have a full cardboard backer so they punch out clean circles.
That group was very good so I think you have a winner. Not that you need me to tell you that!
Edit: I use poly coated bullets now too. They shoot very clean in the gun and are supposed to keep down lead in the air.
“I prefer peace. But if trouble must come, let it come in my time, so that my children can live in peace.” -Thomas Paine