I suspect the ammo is discontinued for a good reason. Duplex loads have never really worked well for me. If a person thinks about it skeptically, 2oz of shot in a 2 3/4" shell can't be moving at very snappy velocity. The 30 yard mark would seem pretty practical if the other half of the shot load weren't moving through the air with it. Would make a mess of whatever that tight ball of shot hit. As for the second charge of shot traveling to 100 yards with good pattern, would a person trust a 1 oz load on game at 100 yards? Especially if the muzzle velocity is as low as it must be to move that much shot out of a 2 3/4" hull? I usually use 1 1/4 loads from a 12 gauge even for pheasants at 30 to 40 yards. I think I would take a pass.