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Please post load data. Last week I worked up a couple of loads for my first 300 build. 10 1/2", pistol gas block, Ron Wilson,Pacnor 1x8, and TP555 3 way gas block. The load I liked best was 6.8gr Unique and Horn 220gr RN. @950FPS. 7gr was little hot. I want to try Blue Dot next for a slower burn rate. Anyone have this data.
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