[fastforty]

I have a CVA inline & it's reliable. When I seat a ball or bullet, smoke comes out of the nipple hole, telling me that all is clear. Sometimes, I can feel the difference when the hole plugs with powder before the ramrod is all the way in. Either way, I poke a nipple pick in the hole before I cap it & have never had a mis- or hang- fire.

You can also get replacement nipples that split the fire from the cap as it goes into the powder "chamber" or adapt it to use musket caps (those things are knarly, & they don't light the charge, you've poured dirt down your barrel instead of black powder).