Me .... I think I´ll keep my 7.62 chamber (very) dry in future. When I recently got the rifle, rounds would not fall into the chamber of their own weight and were sticky extracting. Sent the action to Germanyicon´s leading gunsmith (head of the German guild of gunsmiths and maker of gunsmith tools, mainly reamers). He inspected the chamber and tested head space. Told me that headspace was not up to German commercial standards, but well within limits.The chamber was re-reamed in the shoulder area and is now spot on and I now only have to neck size. I didn´t like the alternative advice given by my re-loading expert who advised the use of a special (smaller) die, made for full auto and machine guns. So, is there a difference in size between 7.62 full auto cases and commercial?