Snap on tools produced (produces) a bore scope camera, model BK5500 that I use. You can see detail in the chamber, but only into the throat and into the muzzle end where it very easily picks up copper buildup. It is too large to fit down the barrel except in 45 cal plus bores. Nevertheless, it works pretty darn well to let you see what's going on inside your barrel and chamber. It's also a whole lot cheaper than the $750.00 borescope that's the next cheapest on the market.

Availble on Ebay used (or new) here:

http://www.ebay.com/sch/i.html?_odkw...scope&_sacat=0

+ 1 for gbflyer (is that Gee Bee?) The chamber brush works well to clean out the chamber and throat.