Well a very close examination confirms what you suspected Eagle27 ! Although there is remanants of sealant around the the rims you are correct and the primer is clean unlike the other two rounds, the brass does not indicate it had been FLS or reloaded and I stand corrected until other evidence of a 400gr Factory round is presented. I have just had a 10.75x68 built but am awaiting stock work to be finished. Thanks for the info

Cheers Steve