I have a year old Winchester M70 Safari Express in 375H&H.
During my second cleaning of the rifle after it's first shooting session.
I noticed the lower portion of the right locking lug, the part the forms the lower side of the anti bind slot was broken clean off. Just a small rectanglular stump about about half a milimeter high was left were the small blade like portion of metal that formed the lower wall of the anti bind slot.

The rifle was returned for repair to the local authorized Winchester repair gunsmith in early July 2005.
A new bolt was orderd. I was advised this repair will take months just to get the part from Browning of Montreal (who orders the part from USRA).
The rifle was return to me mid December 2005.
The bolt was replaced under warranty.

Now it appears thats a new problem may be occuring.

While cleaning the bolt the other day I noticed what the cocking cam surface on the back edge of the bolt sleeve was get scored up by the cocking piece.
When the bolt handle is raised the cocking piece is force up a sloping cam surface maching onto the rear edge of the bolt. This cocking surface looks
like a Nike swoosh that been cut into the rear edge of the bolt sleeve.

As this is the first M70 I have ever owned and my first high power bolt action rifle.
So I don't know how much scoring or ware is supposed to occur at this point. The two parts that rub together here, the cocking piece and the bolt
sleeve, I did not expect to see a big deep groove plowed into the camming surface of the bolt sleeve.
Maybe this bolt wasn't tempered correctly or the cocking piece is tempered too hard.
Or maybe this is normal ware until these to parts ware in and burish polish each other.
Theses parts were oiled but I have now put a blob of high pressure grease on them. I hope this will reduce the scoring ware.

I noticed if the safety is in the middle position the bolt handle lifts much easier than if the safety is in the full foreward fire position. Is this normal?