The .389 BC is listed for their standard 115 Partition, and it doubt it's that high for the shorter-ogive version, which the SPS ad says "are Overruns of an OEM Partition bullet made by Nosler. Designed to provide a shorter COAL in cartridges such as the 257 Roberts, these have a shorter ogive curve and a slightly more rounded profile than the standard Nosler 25 Cal 115gr partition."
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