I'm shooting an 870 Supermag 26" barrel, 3" Longbeard 1 3/4oz. 6's. I know I can get a great pattern/numbers at 40 with a Primos .660 Jellyhead(old style, non green). At 15-20 the pattern is the size of softball/grapefruit. I would like to open up the close range patterns. Has anybody shot a .670 (specifically Carlson non-ported) with the Longbeards? What kind of close range pattern did you get? What did you get for a pattern at 40?