I do get more fail to fire from my Heritage from light strikes (but not 6 out of 6) than my Chiappa, but I would say it is getting better the more I use it. I have used all sorts of ammo (some that i have had in my storage box for 30 years). The main stuff I use was Aguila and Remington cheap ammo. Do you make sure the bullets are fully set in the cylinder? I do know some of my ammo seems to be a bit more "swollen" cases that others and you have to push it to fully seat in the cylinder. If it is not fully set it will move when the firing pin hits it
Otherwise I would say something is either in the way of the hammer/fire pin or the timing is slightly off, or the cylinder is sitting loose. Give it 2 clicks and see if the cylinder is loose or moves around. Gravel Agency (
http://www.gravelagency.com/) is the distributor and place to go for warranty. You may have to send it to them for repair, but they are reasonable in communication. I would also check around on other forums to see if there is someone with the same problem may have a simple solution. Looked and one guy spoke of the cam on the safety not fully turning so it was like the safety was always on so check that the safety goes fully off when moved
Here is the manual link with a schematic with parts list
https://heritagemfg.com/heritage-rough-rider-small-bore-revolver-instruction-manual.pdf
Also keep an eye out on the screws in that gun, especially on the ejector rod and back strap. They will back out. A little preventive amino of taking them out and then blue loctite is recommended.
