When International was still in Montreal, Quebec, I miss those days, they sold thousands of those carbines. They also sold the ammunition you're talking about but only by the 1000 round case.
I bought several of the rifles and chopped most of them up as they are quite strong and accurate. They made cheap learning actions for those that wanted to play with them. We converted them to 303 Brit but they were basicly single shots as the clips wouldn't hold the cartridges reliably and also a few of them to 45-70. The 45-70 was better but we had to trim the rims to fit into the clips.
It's to bad the rim on that cartridge is such an odd ball as it makes conversion to anything else rather pointless. I do own one that has been converted to an 8x57 that doesn't require enblocs and have a friend with one converted to 7.62x51. They are the model M95M and I think were converted by different nations after WWI that received them as war reparations.
I'v also been told that Greece and Yugoslaviaicon converted some of them to 7.62x54 but I've never seen one nor can I find any documentation on them, so it's more than likely just smoke in the wind.