I've had my 220F for two years now. Went with the Nikon Slug Hunter BDC scope. I love it. Was shooting a H&R Ultra slug Hunter. I'm getting better groups than with the H&R. I'm shooting the 3" Remington Accutip. Never shot slugs thru any of my 870's but I can't imagine they would shoot anything like my 220. I couldn't get any pass thru with the H&R, even close shots. It would only shoot the Lightfields. They work but you got to hit em just right. 220, full pass thru and crime seen like blood trails. That's my 2 cents, Joe.