Have a rem 870 3" with tru choke threads, 28" bbl. Thinking about trying the wrights #3 with 3" lead and 3" hevi 6,7, and magblends. Wondering about POA/POI with this choke and how it does in a 28" bbl. Best I have done with this gun is 140's-150's in a 10 with Pb 6's out of a kicks .655. POA/POI went left..Anyone shooting this choke out of rem 870?