I was in grad school in the late 1980s. I worked at a large gun dealer during Christmas Vacation also any other time I had time off.
I recall he got in a fair number of those French bolt actions and all were in excellent condition. He also got even more of the French semi automatics.
They all looked good to me but I checked in several dealer flier and catalogs he had and the ammo was very hard to find. Finally decided it just wasn’t worth the bother despite the low prices.
One odd thing is they had no safeties, none at all.
Ammo today is readily available from several sources. The same for brass to reload the 7.5x54. For reloading, the 7.5 can use the same .308” diameter bullet as many other rifle cartridges.
When ammo was hard to find, the 6.5x55mm Swede Mauser only requires one pass in a 7.5x54 FLSD to open up the neck and ready to be reloaded. Other brass such as the 7 or 8x57mm Mauser, 7.65 ]Belgian (Argentine) Mauser and even including the .30-06 could be converted to 7.5x54 without much fuss.
The French never had safeties on their rifles for many decades, although the Mas 1936 could be carried with bolt handle slightly raised and it can not be fired. The Mosin Nagant M91 rifle has the appearance of a safety, but it was/is seldom ever used due to the difficulty of setting it for most people.