My Husqvarna Model 610 (hammerless) in 12 gauage is from 1948(?) and is stamped 12 - 18.5 which I think (?) indicates 2-3/4" chambers. It appears to me to be a "Sauer-like" action with swedish steel barels.
It chambers and fires 2-3/4" standard American ammo, with no problems.
JERRY
12 is gauge and 18,5 is the diameter of the barell 9" from the chamber.
All HVA above number 165700 have 70mm or 2 3/4" chambers.
It is not like Sauer actions at all, since HVA did stuck to the original A-D patent from 1875 in a much higher grade than the germans did. So it is much more like a brittish made SbS, but of a much lower quality than a german or brittish made gun. Especially those made after the second world war.
/T
