While I've been shooting BP in cartridge guns for quite a while now, I've just begun working with cap'n ball revolvers. I got a Colt Dragoon (Uberti) and shot it yesterday for the first time. The pard I got it from had installed Treso nipples, and I had some #10 Remington caps, so I thought everything would work "perfectly".
I loaded the gun with 30 grains of Goex FFg (didn't have any FFFg on hand), a lubed wad, and a round ball. I seated the Remington caps and used a push stick to make sure they were completely seated. Ignition was no problem, they all fired the first time. However, all the caps came off the nipples, and about 30% to 40% of the caps bound up the gun. All were flattened and "starfished". Those that bound up the gun wound up either between the cylinder and frame, or between the hammer and frame.
I've read the Remington #10 caps are the best to use with the Treso nipples. The ones I have on hand are old - probably in excess of 30 years old. Are the new Remingtons different? Am I missing some trick here?
Any help would be appreciated.