I tried a Star Dot in my 870 last year, and it did well with Hevi13. 280 in 10" at 40 Yards with H13 3-2-7. I didn't keep it though. I use an Indian Creek choke in that gun.
I currently have a Star Dot in my Inv+ BPS, and it also likes Hevi13. 159 in 10" at 40 Yards with H13 Bronze 3-1.75-6 at 55 Degrees. I will be keeping it.
Unless it's an 835/935 the Star Dot isn't a 40 yard superstar with Lead. But they really like Hevi13.