Ive loaded white river primers in my 303, k98 mauser, mosin nagant, k31 swiss and not had a single misfire over about 150 rounds ive loaded with them so far. Would be good to find a mate with the same calibre and try firing them in that. Bit late now obviously. They had a few problems lately at the local shotgun range with seeing more misfires than usual. Someone there reckoned the primer quality has gone down since the war in ukraine etc?
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