Bore Butter is fine for a shooting (patches, conical) and in the field lubricant.Iuse it and other natural lubes all the time.

However, I would not use nor recommend using it as a metal protectant or long-term rust preventative. It's not to be trusted for long term storage as bore butter relies on barrel heat as a result of hot water cleaning to allow it to flow to every surface area. However that is not a reliable method for lubricant distribution and coverage. Also, the use of BB can result in a buildup within the bore that eventually causes reduced accuracy unless you srub the bore to bare metal every time you clean, and then you run the risk of flash rusting. Plus as mentioned, if you happen to trap moisture under the BB, then rust will take place.

Some folks love BB as a long term storage lube. That's fine, I certainly don't want to change anyone's practices and as long as it's used on your ML-ery not mine.

For me for long term (more than a day or so): Otis 0-85 Ultra Bore inthe boreand Clenzoil outside the bore.

M2C,

Tahquamenon