Re: Question for Cooper owners?
Cooper fired the gun before sending it out. They know there is no issue on their end.
There are so many things that can make ANY gun seem to shoot bad -that are not caused by the gun.
At most, I'd give them a heads up about your results so far, and get consensus that you'll actually isolate the problem to the gun before sending it back.
Until this is done your scope could be bad, it's mounting, your ammo, your cleaning, your rest/bags/hold, etc.
There was a 3-4 rifle test in a gun rag years ago where they through a Speedy Gonzalas benchrest gun into the mix. Shocking to many, and very discrediting to the testing was that Speedy's gun shot worst among off the shelf factory guns -with factory ammo.
But this was simply a matter of taking a gun out of it's element, and ALL guns can be made to shoot poorly when this is done.