It is the "new" hybrid case designed for the new SIG service rifle, capable of running at 80K PSI, as approved by SAMI.Originally Posted by markm
I have my LGS on the lookout for a SIG rifle in .277 so I figured I might as well get some brass/steel to play with. (I don't even have dies yet.)
Unfortunately, it appears SIG is only making rifles in 762 which is ridiculous.
At the worst, I can form it into something else and run it hotter if I feel like risking a barrel and bolt.
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