Quote:
Originally Posted by doctom54
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Reading is fundamental, stated the CALIBER is to be 6.8mm, not necessary 6.8 SPC II. As not all .30 calibers are 7.62x51 NATO or .30 US Springfield Model of 1906. There are many cartridge designs for those calibers. Velocities stated elsewhere are too high for the 6.8 SPC design.
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