Faxon bolt issue , overpressure?

[Bologna]

Was testing out some soft points tonight at 100 yards.  Shot a nice .5 group but on my 4th round the round didn't chamber.  Was able to open it up and the ejector fell out the bottom of the gun along with the ejector spring. 

I probably only have 100 rounds through this gun.  I think this was a bolt assembly issue not an ammo issue.  Thoughts?

https://imgur.com/gallery/kXdghc9