xi32
Can not even tell howm many guys behing a counter do not know what they are talking about all the time, not saying your guy didn't. But Remington does offer a Satin Stainles Barrel... the reciever is not stainless only the barrel.
Check these two sites...
http://www.remington.com/products/firearms/muzzleloaders/
http://www.remington.com/products/firearms/muzzleloaders/genesis_specifications.asp
This not to say that a stainless barrel can not be marked, because it can and as normal there are certainly different qualities in stainless steel as in anything else.