Did a patterning several years ago with my partner using different 3" duck loads #2 from 4 manufacturers .Identical guns A 400 Berettas. he had a patternmaster I had the factory beretta mod choke.All shots from identical Yardages was quite astounding truly. The Patternmaster he had put great groups together on the Winchester and Kents.The patterns with the Remington were poor and the federals were as bad.My factory choke worked great with the Kents and the Federals but was poor with both the Winchesters (dry lock) and the Remingtons.I would definitely try the loads on a patterning board ,my renegauge does not pattern well with these new Browning wicked wing but throughs a great pattern with the Score 1 1/8 .factory choke My .02 D