Thanks for taking the time to reply folks. It probably is a Black Shadow but not a Super Shadow. It is a synthetic stock blued barrel rifle that is marked just as a model 70.
Catshooter-It is a controlled feed and the scratches on the case are actually right where you mentioned in your example. Quote:
For example, a streak of scratches on the bottom of the case from the shoulder to within 1/2" of the rear of the case,
Like your situation newshooter this rifle shoots good, it just aggravates me. Thanks again for the comments folks, there is a wealth of knowledge here on this board.