Went to the range today with the intension to compare 3 different slugs. They were all 2 3/4 , challenger , federal and Remy sluggers . This test was performed at 30 meters with my Night Hawk 870. I was blown away with the accuracy from the challengers , I had 1 .5 inch groupings free hand no rest. Federal was second best which for me was still acceptable but I would stay far away from the Remy sluggers. Thanks Kate for bringing these in I must have more.