I have an X Bolt, stainless, stays in one of my trucks. Hadn't shot in a few months. The extractor is stuck in. I can shoot it, but won't throw. Can I drive one of the pins out that looks like it retains the extractor and spring? But may need further access in case it is really stuck. Left it soaking overnight in Kroil, tried vibrating it with air chisel, but won't shake loose...
I have seen this happen at least once... There was a generation of A-Bolts (yes, I understand yours is an X) with little regard to metalurgy and if you show them to the ocean they seize. I have bashed A-Bolts a lot here and will leave it at that.
I would suggest it will take a serious breakdown and cleaning, perhaps it is beyond your skill set? Anyway, everything needs to be taken apart and examined to determine what needs to be done to stop the next seizure...