I know what you're saying and I've tried it before but the way my safe is set up my rifles won't fit in it muzzle down. Anyway storing them that way could still get oil in the chamber if you have excess on your bolt. I swab my chambers before shooting to get any excess oil out of the chamber. I'm assuming that synthetic oils can be bad for wood too just like dinosaur oil but still no one has answered that question. Only how to keep it out. Thanks anyway.