Winchester on the action, FN SPR on the barrel. There were 2 that were the proving rifles built on the LA - one FN has, the other one is floating out there somewhere, and I guarantee FN USA knows where it is. I can probably get a decent picture of my roll marks if you were curious.
That's exactly how I imagined they would be. You're good, I know I've seen them exactly as you described somewhere. I just couldn't remember 100%. You confirmed for me.