Get too much oil in the workings, particularly the bolt and you will have a mess on your hands.....Some 22 ammo is dirty and wont take long to foul things to where you get a lot of FTF and FTEs............I use a light gun oil applied with a rag then wiped all but dry.....If I am going to store a weapon then I will oil it some what heavy then wipe it out before I use it again.