The correct (CIP) designation is 8.15x46R
(Nominal) bullet diameter 8.15 mm
(Nominal) case length 46 mm
R = Rand (Germanfor rimmed)
But the following designations have been used in the past
8.15x46.5 R Jagdgewehr Normal
8.15 Frohn
8.15x46 R Frohn
8.15 Harstang
8.15x46 R Normal
it's all the same!
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