After much experimentation, I've got a good load for those 100 yard matches. 12.5gr of Blue Dot under a Belding and Mull 311169 cast boolit. The Blue Dot seems to require a large rifle magnum primer, I'd previously tried the same load with large pistol magnum and regular large rifle primers to my utter frustration. I recently tried it with the Remington 9 1/2M, as that was all I had, and viola! This is 5 shots at 85 yards using my scout scope equipped 92/96. 3 are in a cloverleaf touching, and 2 are less than an inch away, also touching. Velocity should be around 1250fps, about the same as a 22 rimfire, with 3x the bullet mass. I think I could hand some frustration to some black rifle shooters with this load!
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