When you find out, let us know-- the only Match ammo I've shot through my .300 Win Mag is a Sierra 180 MatchKing over 7Xg. of RL 22, over a CCI Magnum primer, with weighed cases and charges weighed to 1/10gr. But if you're getting honest .6 from Rem. factory regular, and this is a Safari Grade, um, how much do you want to gild the lilly?
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Will you, too, be one who stands in the gap?
Matt