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Old April 1, 2013, 03:20 AM   #23
Senior Member
Join Date: September 10, 2007
Location: Racoon City
Posts: 933
Because it is.

.308 Win is rated at 62,000 psi.
7.62x51 is rated at 60,200 psi.

Not a lot hotter, but hotter it is.
The difference between brands of primers. Well within the safety margin. Seriously, if you are worried about a 1800 PSI differential, you have a wall hanger, not a rifle.
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