I am thrilled. I use the Ballistol oil for cleaning and preparation for long-term storage of my air rifle. Also the course I clean it. I have to "Schiesspropfen" that I previously with the oil to drink, and then simply abschiesse. 3-4 times I do it, and the barrel is free from lead residues and conserved. Even the exterior I clean the Ballistol oil. The foam of the gun suitcase we (over 9 months) is not considered as part of long-term storage affected. Did it ever experienced that the dissolved or even had the metal discoloration. Here is not the case. Can I highly recommend.