This is Sierras latest jacketed.
https://sierrabulletsblog.com/2017/12/21/sierra-bullets-300-aac-blackout-load-data/
Most of my cast data is from cast boolits.com site!
In need of a sear for a Sport King .22
Father in law passed recently and the mother in law gave me the gun. It hadn't been shot in years, so I cleaned it up and put few rounds through. Wouldn't lock back on final round ( not sure if was supposed to or not). So I was breaking it down and the tip...
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