Quote Originally Posted by 5thBatt View Post
Seems they changed from the 1941 to the 1942 dated actions late 1942 & in the serial range C90000 a couple of years back there were a couple of rifles in a auction that wiere in the iirc C91000 range, the lower number had a '42 dated receiver & the higher number a '41 date, one had a mismatched bolt but amazingly the bolt had the concecutive number to the other rifle.
Yep I'd agree with that mate although I would add that there was a period of overlap where 41 and 42 dated actions were being assembled simultaneously. I've seen more than a few 1941 actions with higher serial numbers than 1942 actions and this would be consistent with all years if production I would think. I'm sure that doesn't come as a surprise to anyone.