What made him pick AR2207? It's completely the wrong powder for a 7mm08. Much too fast burning.
There will be "an amount" which would be ok to use. But it's going to be small. And it won't give nearly as good velocity as something like AR2206H, AR2208, AR2209 etc...
ADI know this - which of their powders will work acceptably for a particular job and which ones won't. Obviously it's not worth anyone's time developing data if it's only going to give poor performance at best (and be dangerous at worst). So no AR2207 data for 139gr 7mm08 - and you cannot will it into existence either![]()
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