I used to read the crown/G as "gezogen" = rifled too, but actually it stands for "Geschoss" = bullet.
Quote of a footnote from Lee Kennett's article Gun Proof in Germany, Gun Digest 1975, page 187:
"2 The proof law did not provide tables for shotguns and rifles as such, but for arms designed to fire shot and those made for solid projectiles. While this amounts to essentially the same thing, it does not preclude the possibility of a smoothbore being proved by table III and bearing the crowned G, if indeed it was actually designed to fire bullets. This was the case for some of the massive smoothbore doubles built for big game hunting in this period."

Last edited by kuduae; 01/18/11 05:14 PM.