Re: 300 winchester case head seperation ???
Bigbuck, have you checked the other cases for head seperation? You can use a sharp pointed tool as a feeler to keep tabs on this. If you take this tool and gently feel the inside of the case, you will usually feel the ring start to form on the inside first. This will tell you if they are starting to fail. Sometimes a paper clip will work for this, but what I ended up getting was a dental hygenist tool. The stainless one with a sharp point on both ends. The other post about not pushing shoulders back too far is sound advice. I only try and push the shoulder back about .001-.002 and headspace on the shoulder itself.