I've got a little Adams, very pretty little gun. Mine has 98% shiny original blue marred only by an unfortunate rust spot from the case. Some moron scratched the rust off
The nipples were too big for a standard cap so I made new nipples.
The hammer didn't have enough welly to fire a modern cap so I added a small bump to the hammer face to localise the impact.
Loaded her up and missed the target at 25 yards
Possible explanations...
1: I am a crap shot.
2: Wrong bullet
3: A rust pit in the forcing cone?
http://www.robinhewitt.net/adams.jpg