Interesting video from Wade at Texas Predator Hunting. He was doing high pressure test in a pressure test rig, running things way above SAAMI, and finally experienced firing pin aperture erosion, flaking, causing FTFire, FTExtract.
Hasn’t had any issues with bolts under normal operation for years.
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When I broke bolts in 5.56, I started having FTFeed, because the bolt cracked at the cam pin hole.
I’ve been shooting Grendel since 2009 across a wide variety of barrel and gas system lengths, tons of factory and hand loads, still haven’t broken a bolt or extractor.
I’ve been shooting the 12” CLGS Suppressed as my go-to since 2017, but I take the 17.6” Lilja and 18” LaRue along with it usually as well. Things just run.