[jdsingleshot]

I was getting a lot of failure to fires with my H&R 922. I was using Winchester white box
ammo and it was very tight in the cylinder, so much that I had to mash the cylinder on a hard flat surface to get the cartridges to clear the frame.


I made a burnisher to use by hand in the chambers and was able to make enough of a change that the shells will now almost plunk in. No more misfires. It seems that sometimes a rim was not quite bottoming on the cylinder and absorbed some of the hammer's energy be moving to close the small gap. Maybe?

Before that, I had straightened the mainspring guide, which had been slightly binding the spring. That helped but I still had misfires fairly often, until I burnished the chambers.

On the other hand, there had not been any misfires with Remington or Federal ammo.