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Current SAAMI spec for 44mag is 36,000 psi. While the chamber insert probably holds the wall pressure, the pressure against the breech face and firing pin hole would seem to be unaffected, so the little gun is eating way more than our 7000 psi vintage shotgun shells, or even the 11000 psi SAAMI spec. Were the old chamber inserts designed for lower pressure black powder rifle cartridges?
The Following User Says Thank You to Mike Poindexter For Your Post:
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