Premier Shot exhibits more resistance to breakdown or wear than cast material. Figure 1 shows cast steel CS 330H shot and Figure 2 shows PCW 32H shot—both after the same number of cycles. CS 330H has severely broken down while PCW 32H has not broken down at all. In fact, after 1,000 cycles, PCW 32H is more consistent in size, shape and roundness than in the unused condition. PCW has actually improved with life.
Cast Steel CS 330H - 1000 cycles
Premier PCW 32H - 1000 cycles