Thanks for the info! I tried some s/n of vL&D marked Mausers on the site. It's interesting that they invariably found those s/n greater than thirty thousand, and could not find the s/n lower than thirty thousand.
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Just read their whole list. Totally 2,191 s/n were listed. Only eleven of them are smaller than 30,000, and among those, three seem to be typos (56, 5759, & 6545).
(11-3)/2191=0.365% No wonder I hit "higher" guns easier.
Will wait until they input more into the system before I spend my hard earned $$