Greetings @chainsaw,
I recently chronographed the 140 grain Remington Coreloked projectile with 42.5 grains of AR2208 in a 19" 7mm-08 barrel at 2,710. Hodgdon lists a max of 43.5 grains of AR2208/ Varget with the Hornady 139 grain Interlok for 2,877 fps which is right on the money with my results once charge and barrel length adjustments are made. Interestingly Hodgdon lists the same max of 43.5 grains of AR2208/ Varget with the 130 grain Sierra HPBT so this would be a usefil max to work to. Pressure was just over 50,000 CUP.
Regards Grandpamac.
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