H1000 with the 190 ABLR was almost a one hole group. Just letting you know all the powders I've tried that have produced acceptable results. Three shot group below.
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I'm shooting a xcaliber barrel adjustable gas block, 5 ounce buffer and david tubb flat wire buffer spring my problems have disappeared.
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Ok so I was told. The problems are not with the brass but from over gassing, and buffers that are to light. This is from the guys at nosler. Also my friend looked at my brass and came to the same conclusion. Take it for what that's worth. My friend is in the national guard.
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