I recently purchased a semi auto 22 Savage64f . after successfully using it on the farm for gophers i noticed that the magazine had been chewed away by the bolt and the 22 rounds had eaten away the metal that holds them in place. now the mag auto ejects all cartridges when more than four are loaded in a ten round clip.. Now my Question is Is that over use, something wrong with rifle or cheap material that they need to address at the plant. any help would be greatly appreciated , my kids are very disappointed they cant shoot gophers right now.