I am somewhat at a loss with a stainless model 70 that I purchased last year. Not too long after owning it I noticed that the bolt was becoming harder to operate, to the point where it felt very raspy and needed noticeably more effort to work. I field stripped the bolt and noticed that the cocking piece had cut a groove up the entire length of the cocking cam on the bolt body (deep enough that it could be measured with the depth gauge on a set of dial calipers). I sent the gun into Winchester and the bolt came back polished. Not too long later I noticed that the groove was being cut again, so back it went. This time it came back with a new bolt (good on them) and I just field stripped the gun and it is growing another groove. I am completely at a loss on what to do with this firearm. I have tried multiple lubricants (just ordered another one), and am at the point where I am at my wit's end. Is this normal behavior? My only other two Mauser type actions (98 and CZ 527) are both designed so that the cocking piece contacts the full width of the cam, but the model 70 (both bolts) only contacts some of the cam. How do you keep your cocking cam area smooth and lubricated? Is it a stainless steel is harder thing and I should try to order a blued/matte cocking piece? I emailed Tubb's to see if their speed lock piece was softer or had a larger bearing surface and they said no. Am I just crazy? I've paid much less for guns that are much smoother. Mind you, I'm not necessarily talking about the effort needed to cock the gun with regards to spring pressure but to the general rough feel. Here is a picture before I sent the gun back for the second time (kuddos to them for paying shipping this time). Its hard to get a photograph that shows what's happening: Any advice or guidance or words of reason would be greatly appreciated. Thank you.