3. Slide the cleaning string with a brush of the proper calibre through the ejection window in the barrel and pull it from the muzzle through the barrel.
4. When the barrel is removed clean from behind with a suitable cleaning rod.
5. Basically use only suitable cleaning agent, oil or grease.
6. Check whether deposits of the rounds have collected in the sections. If necessary, clean the barrel with a commercial grade barrel cleaning agent (observe the respective instructions for use) designed for firing residue.
7. Coat the barrel bore and the barrel chamber with a little gun oil or gun grease.
8. With installed barrel: Rub the barrel bore and barrel chamber dry by pulling through a suitable cleaning string several times.
9. With dismounted barrel: Rub the barrel bore and barrel chamber dry from behind with a plastic sheathed cleaning rod of the proper calibre.
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