I'm a late arrival to Rolling Blocks but I find the 3 that I have (a #4 .22 take-down and a 1867/89 Swedish military and a 1867 that was made into a sporter) to be very interesting. Both of the Swedish are in their original calibers, one in 12.7x44R centerfire and the other in 8x58RD so I'm in the process of gathering the materials I need to make up some cartridges.
Nice board with a lot of valuable information to be had.