7x64
This European cartridge is over 100 years old, and while ballistics are almost identical to the 280 Remington, the case dimensions are just slightly different.
This will give you slightly more zap than a 7X57, but in the real world the difference is hardly noticeable.
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 Me dig, me
Last edited by OldBadger; 10-28-2013 at 04:35 PM.
Reason: Additional info
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