Thread: IMR 4166
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Old August 25, 2015, 01:31 PM   #1
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Join Date: April 3, 2015
Location: North Georgia
Posts: 1,337
IMR 4166

This powder keeps popping up in magazines and people at my range. It shows it helping keep barrel cleaner and supposedly does well in 308 based cartridges. I bought a lb today to experiment with. Anyone use this in 260 or 308? Wanting to try it out in my 260 with some Sierra Match Kings. According to chart just a tad faster than IMR 4064. It seems very plentiful around here.
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