M Pro-7 has been the best that I've used. Although I've never tried Frog Lube before. I'm thinking about doing some research on some of the Teflon products but it'll have to be GREAT to surpass M Pro-7. It's made be Hoppe's so there's history here. Keep your Powder Dry

Dennis in Idaho
Those whoTalk, Don't do.
Those who Do, Don't Talk!

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Dennis in Idaho