So, despite owning more than a few cap/ball revolvers, originals and replicas, I'm pretty much a noob when it comes to shooting them. I shot my Uberti Walker for the first time a couple of weeks ago and it went well using 777 and Remington #10 caps. Only trouble I had was actually getting the caps on the cones as there's VERY little room behind them. New Years eve I loaded up the Pietta 1860 with "blank" newspaper loads for the kids and even after pushing the caps on the nipples with a stick, they would more often than not fall off as the gun was elevated. Gun is brand new, cycled but never dry fired. Maybe the nipples just need to be mashed/flattened out with use a bit? Is there a cure? I was using my new Tedd Cash capper if it makes any difference. Remington #10 caps, which from what I've read are considered the "go-to" caps for Piettas.