Tyvek Overshot Discs as overshot cards are ideal for magnum steel shot loads. They confine pellets within the shotcup. Tyvek discs are also placed on the base of the shotcup, significantly reducing the chance of pellets imbedding into the wad, thus improving patterns and pellet counts.
At a mere .005", our Tyvek UltraThin Overshot are the thinnest overshot cards in the world. They work in tight-fit situations when there is no room for thicker cards. They are also flexible and work well as a shotcup liner to prevent pellets from embedding. Ideal to seal in buffers.
Im new at reloading shotshells. A majority of my shells close up but a portion leave a little hole in the center. I found that by dropping one of these on top of the shot before crimping prevents any shot from escaping. I only wish they were a little cheaper.