Thanks to my support group I have another rifle checked off my list!   It's not immaculate, the butt stock is fairly loose but a dab of glass can fix it, the bore has a couple of substantial craters and a few rough spots but it should shoot...
Didn't really know it was ever on my list until I saw it.  This M33 Swede happens to be a 9.3 x 57R and going back through the archives I found out several members here have one.  There wasn't a caliber marking on it but following Marlinguy's lead, I checked.  Bore slugged at .375 and it appears a 38-55 case shortened about a .100 is going to fit it perfect, - thanks Vall for that info.  It doesn't have any holes in the tang for a sight, but if I want to shoot it - the barrel sights on it aren't an option for me...  I just about finished a sight set for another rifle I'm building so it's off to the races again, not sure what these need to look like. 
Greg

I think the Type 33 is a very sleek, and neat version of the Rolling Block! And yours being likely the same caliber as mine with it's .375" bore makes it really easy to load for and shoot too!
That's a good looking half stock version, but as you mentioned the sights are really poor on these guns! I put an old Marbles Special Flexible Base tang sight on mine, along with a globe front. I had one for a Marlin repeater, so it's 1.125" spacing on my Type 33 now. The gun was always super accurate, but couldn't realize it until I changed sights. I love shooting mine now with better sights!

Nice, GT! What's your serial number so we can get a feel if the older rifles had the larger bores. Also when mounting your tang sight be sure to take into account that the tang has cast off.

Great looking rifle! Quite svelte! Like Elke Sommer! Have never found one, but remember one like it graced the fireplace mantle in my grandad's house in Winnipeg. It went to the guy who sold the house for the estate when he died. My dad thought it would be illegal to bring back to the states, so, oh well. Lucky find for you though! Keep us posted about it, I'm curious about the sighting system you come up with for it.

Well that shoots down the theory that 22xxx and above were real 9.3s at .366. I guess we are back to the factory refreshed barrel theory. How lucky am I that my two 33s which I wanted to be .366 to match my Husky 17 really were?

I thought the 9.5x47R was a bottleneck case? GP, is your chamber closer to 47mm than 57mm and it is for a straight case? Here's a link with pics of the 9.5x47R: (You need to Login or Register to view media files and links)
The mention of a 33 hanging over the fireplace in Canada - what about a special order shipment of 38-55s to North America?

Since they were already making the .375 barrels it would seem chambering them for 38-55 for a relatively large volume special overseas order would have been easy. Getting accurate chamber length measurements from those with the .375 rifles would tell the tale. I just ran an experiment. An empty 38-55 case will easily fit in a 9.3x57R chamber but an empty 9.3 case will stop about a quarter inch out of a 38-55 chamber. Loaded ones won't fit either way.

I scrubbed the bore a little and used my cheapo bore scope on it.  There's a little corrosion in the throat area and some substantial about 12" down the barrel.  Not planning anything until it gets shot a little, then maybe a little work with some JB's.
We've all had some rifles that shot well even when the bore looked bad. 

Sorry Freebird and Rebel, it's not bad enough that I'd just hand it off to you and save me the misery...
Greg