Okay, well, some more information. I bought the rifle new from a local dealer a few months ago, so it wasn't traded for any reason. The bolt face diameter is correct for the standard casehead. A 7mm Mag case will not fit it. I have two other M70's - one a pre-64 .270, and one a classic stainless 7mm mag. Both of those rifles are fine. The ends of the bolts on those rifle are flat, but on the 6.5, under the extractor when it's in the retract position, is a raised ridge on the bolt face, raised above the ridge that sort of encircles the case head. It sits directly under the extractor hook when in position to pull the case out of the rifle. My other M70's don't have this raised area. Can anyone look at their M70 bolt and tell me if that raised area needs to be there? It seems to keep the extractor hook spaced from the face of the bolt, and not allowing the hook to "clamp" the case head to the bolt face.