I use the soap and boiling water to clean it (after every shooting) and I do the same for the end of season clean up. Then I put a liberal dose of bore butter down the barrell on a patch when the rifle is still too hot to touch. Then in a month or so when I go to shoot again all I have to do is run a dry patch down to take out the excess. Oh and I then store the rifle with the muzzle pointing down so the excess runs out onto a cloth.

Things to note are:
- This works the same way as seasoning a frying pan and the butter gets into the little pits etc when it is hot.
- It has been my experience that you can not mix natural and petroleum based lubricants and that you should stick to one or the other and same goes for using solvents when using natural lubes.
- rusting (oxidizing) happens when moisture and oxygen meet on metal and coating of lube prevents this.

My 2 cents
Eric