A good site for information :
http://www.northwest-denture.com/mauser1896
A word of caution, DO NOT use 7.62X25 ammo for a Tokarev pistol. Only use 7.63X25 ammo specifically loaded for the Mauser. The Tokarev ammo is too strong and can blow a Mauser up or worse, break the bolt stop and allow the bolt to fly back into the shooters head.
Replace the bolt stop if you plan to shoot it and learn to reload if you want to shoot it very much. Have fun. They are great guns to shoot!
Steve