Turkishicon surplus ammo is the 1905 loading of the round. It is a 150grn .323 boat tail projectile going at 2950 ft/sec. Even though that was shot through Gewehr 88s and 88/05s I wouldn't recommend it, as after reading the book on the rifles, they didn't even proof them (all sorts of issues, which if you want a good story I highly recommend looking into. It has racism, barrels bursting, incompetence, lack of understanding of metallurgy and smokeless powder, overall a great tale).

I highly recommend if you want to shoot this rifle, to reload as it is the only way you will know it is safe for your rifle. These rifles were a stop gap for a reason, and didn't feature proper gas venting either (which is why the cocking piece has that little bit that sticks out on it, to try and divert the gasses before it hits your eye!). Very nice rifle, I hope you enjoy it.