Clean it before you shoot it... Clean it after every three shots....Clean it when you are done.....

Do not fire the shots one after the other fast..... shoot one and wait at least a few minutes for the barrel to cool then fire another and wait for the barrel to cool again. You are not just shooting a gun, you are breaking it in.... You are seasoning the barrel. Overheating a new barrel can cause accuracy problems.

After you are done cleaning the gun the final time, oil the outside of the gun lightly as a rust inhibitor.

Be safe, and read up on gun handling and shooting. Become an asset to your shooting friends, not a liability or a risk factor.

Good luck and congrats on the new Tikka.