Originally Posted by Mikecr
None of this is indicative of a Cooper rifle problem at this point.
You should chill out, fireform some brass in it, and work up a good load -like everybody else.
I do not recall stating anywhere that it was a Cooper problem.......yet! Thus my reason for posting here and possibly getting advise from others with more knowledge and a different point of view than me before contacting Cooper.
I don't have a go-gage so I can not be absolutely sure about the headspace problem. I do think factory rounds should chamber without any problem in a standard factory round that ammo is readily available for (not a wildcat or Improved).
Your probably right about chilling out I guess my pateince is wearing a little thin after having returned this rifle once already because the first one had an issue with barrel runout (confirmed by Cooper).
Hopefully the copper fouling will ease with more break-in. If not, that sometimes happens, I'll have to live with it. It doesn't mean I have to be happy about it however.
Finally, Cooper has been great in their handling of everything so far.