Lyman .565 Stadium Style Bleacher Loading Block, Orange - 7728087.p Lyman ? an innovator in the field of case preparation and reloading ? has introduced ?Bleacher? Reloading Blocks. Lyman has taken a step up in loading block design with the ?Bleacher? Blocks. The stepped design allows you to easily grip a single case without jamming your fingers down into a group of cases like in traditional loading blocks, and allows for a smaller footprint on your bench. Made of tough, durable polymer, the ?Bleacher? Blocks are molded in three sizes to closely fit a variety of rifle cases. One size fits 223 size case heads, another fits 308 size case heads and the third fits belted magnum size cases. All hold 50 rounds.