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Posted: 7/7/2020 10:13:36 AM EDT
At 80,000 PSI, I can't imagine getting much accurate life out of a barrel. I haven't been able to find anything definitive about this other then Sig saying that they're working on it.
Link Posted: 7/8/2020 2:07:21 AM EDT
In GRT, I'm using .284 Winchester as a stand-in. 49gr of H4895 under a 139gr GMX makes 78k PSI. Using the barrel life calculator shared on accurateshooter.com, that makes about 1400 rounds. Slightly smaller bore and charge should be similar.
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