I can find no source for what this indicates, but have received some opinions that it indicates the rifle is worn out, and/or may have head space problems.
It seems to me that to use wax to indicate such a status on a disk that is hard stamped to indicate other conditions is a little strange.
Can anyone help with a source of information on exactly what this wax 'seal' indicates? Preferably before I have to make a decision on whether to buy this rifle. To my untutored eye, I have to say it looks fairly good, but the opinions expressed to date have got me worried.