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Old 09-20-2012, 04:22 PM
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Today I decided to test my extended load work with my hunting load for my 8mm Rem mag and also looking for better velocities for my 250gr Barnes Original. My average today with the 220gr Sierra was 3003fps and this is due to me using after I full sized my brass an expander mandrel expanding the diamater of the neck .002 and then using the regular mandrel for my Sinclair neck turner. This reduced the neck tension which also reduced my pressures and velocities from 3018fps on average to 3003fps but group is much tighter. Was able to get the 250gr Barnes Original to 2749fps and what was amazing today was all three of the rounds were 2749fps.







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