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Discussion in 'Gunsmithing' started by bugle-em, Aug 19, 2011.
found a used gun rem 721 action labled 6.6 - 284 lapau?
I believe that it would be a 6.5x284 Lapua. 284 Win. case necked down to 264. Lapua sort of standardized this cartridge when they introduced brass for it. It was formerly a wildcat.