Unless the gun has excess headspace, the firing pins don't look bad enough to be causing misfires. The firing pin holes look worn some, but I have only seen that happen a couple of times, and both were old Ithaca trap guns where the pins moved at an extreme angle. They were very short pins and would actually bind because of the angle.
I fhte gun hasn't been deep cleaned I would first do that. Degrease and relube. While apart, examine the firing pin hole and the pins. I would polish the pins and the hole till smooth and then try. Of course the springs could be weak too.
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