thanks for the input. Franchi, not many folks can offer 50 years of personal experience.

I'm looking ahead to the end of grouse season in 4 weeks, and as I've never done more than brush/swab the bores on a half dozen guns with clp, I was looking for something to do a more thorough job. I've recently started an EEZOX regimen on one older double & like that a lot so far.

I think the Iosso product is fairly new...J-B/Flitz obviously been around awhile.