Been there and enjoyed the reloading & fun of development.
1x 257AI lovely work by Parker Ackley, he stated it was one of his best improvements based on increase in velocity per volume.
2x 260Imp 30 Deg Improved. Bought the reamer from JGS & custom dies from the developer Robert Whitley in the US. With RL26 it would run close to the 6.5PRC with about 10gr less powder. About the perfect bore to case capacity ratio for a 6.5mm.
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