The only real other state of affairs that I can imagine is always that it may be a regular Model 70 barrel and motion having a substitute XTR inventory. This can be not likely nevertheless...I suspect that it's as you describe, an unmarked XTR. I now live in New Mexico https://lorenzosayue.full-design.com/a-secret-weapon-for-winchester-model-70-featherweight-30-06-review-69621850