thats not a M 146 but a M 46 A in production from 1942 to 1945 because Husqvarna cant get M 98 actions anymore. http://www.skydevaaben.com/allhvamodels/info.xml
its new to me that they were marked with 9,3x57

my information was that Husqvarna wrote only 9,3 because it WAS allways the 9,3x57.
like here on my own 1937 made M 46

it was put about it they only start with the M 46 AN what is basically the same rifle like the M 46 A but in 9,3x62 to engrave "9,3x62" to distinct this from the common "9,3".

it seems this statement was wrong