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heat waves
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  1. Ruger Mini-14 and Mini-30
    Today while working up loads for my scoped series 582 RR I had trouble getting a decent sight picture once the barrel heated up. I noticed that groups from a hot barrel only opened up about 1/2" going from 1.5" to 2"@100yds. There was no wind so the heat waves caused dancing of the target &...
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