I use 165/175 Matrix VLDs in my .270 AI ...
(.270 Win 150 NBT vs .270 AI 175 Matrix VLD)
My current accuracy load for .270 Win (fireforming to AI) is 2919 FPS.
My current accuracy load for .270 AI is 2993 FPS with 58 H4831SC BR2 Win brass); exceeded the 3K+ FPS but group opens up. Have a few more powders to test on.
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