OK, to bring back an old thread, it was finally not too cold for me to be comfortable shooting today, so I tried the Estate brand slugs($3.79/5), against some Federal slugs I got at Wal-Mart yesterday(7.99/10). Except for the color of the hull, they look identical. They were both shooting the same point of impact, and while I do not have a chrony here, they felt pretty much the same when firing. So I have pretty much come to the conclusion that they are the same except for the color of the hulls. I was shooting them in a Tracker 2 barrel at 50 yds today, and while not spectacular, I could keep them inside of 3" off of some shooting sticks pretty easily. i even shot some mixed groups with some from each brand, still 3" or less. I don't plan on using this gun past 80 yds or so, so I feel pretty comfortable with either of them. For the price, they are hard to beat. A little more tinkering, and a solid bench, and I could probably shrink that easily. Now to rest my shoulder for the evening, 40 rounds of slugs is more than I care to do again. Thanks, Billy