I sold my first Benelli Nova, as I wore it out. The guys I know that shoot the Benelli Nova's now have permanent chokes. They rusted up fast. I remove my shotgun choke after almost every hunt and have started using. I now use Jet-Lube, Nikal extreme service anti-seize lubricant. It has a heat rating of 2600F. I would swear by this product for shotgun chokes. Best stuff ever. No stuck chokes.