Anschütz serial number ending with a X

[SP van de Graaf]

Hello i am new here my English is not the best there is but ill give it a go.
ive bought an Anschutz rifle a month ago, my first rifle. Its an old one out off 1979 if im correct the first one off the first 1813. The rifle's from that year were the first how have been fitted with the 5018 match trigger mine has thet trigger. My rifle is completely original also the mark off testing on the barrel is from 1979. And my rifle's serial number ends with a FAT X this a is something i've heard vere litle about. Can anyone tell me more about it

greetings

Stefan from The Netherlands

[TWP]

The only Anschutz rifles I've seen with an X in the serial number were the 16xx models which came right before the 18xx models.

You probably have a late 16xx rifle not an early 18xx (of course I could be wrong on this).