I have a rimfire revolver that has been misfiring (as in failing to fire) on some rounds. My first guess as to why this might have been happening was dirty chambers in which the rounds were maybe not seating fully and thus when struck by the firing pin were pushed forward a tiny bit instead of being dented by the firing pin. So, I cleaned the chambers thoroughly with Gunzilla, and then cleaned them again, For the second cleaning, I used copper solvent. Then I cleaned them a third time, Gunzilla again and also used a regular wire ore brush & also a tornado brush, to make sure they were clean as a whistle. The problem persisted.
After that I thought maybe the firing pin was chipped, gave it a good look and it looks fine. Then I figured it may be the main spring was starting to give out so I changed that with an OEM heavy duty main spring. The problem remained.
Then I took a good look at the transfer bar, thinking maybe it was getting stuck from gunk but it was clean and moving freely. I examined the star extractor as well, thinking maybe it was somehow bent and not seating properly but it too looks good. I am leaning toward thinking maybe it is the firing pin even though it looked okay and am thinking of trying to change it but before I do something as complicated as that, I figured I'd ask here to see if anyone has had a similar problem and what you did to correct it.
As far as I am aware, it happens on random cylinders - not always the same ones although I need to double check that next time I bring it to the range. The rounds that have failed to fire do get it by the firing pin but only have shallow dents.
Any help, from someone who has experience solving a similar problem, would be appreciated. Thanks.
After that I thought maybe the firing pin was chipped, gave it a good look and it looks fine. Then I figured it may be the main spring was starting to give out so I changed that with an OEM heavy duty main spring. The problem remained.
Then I took a good look at the transfer bar, thinking maybe it was getting stuck from gunk but it was clean and moving freely. I examined the star extractor as well, thinking maybe it was somehow bent and not seating properly but it too looks good. I am leaning toward thinking maybe it is the firing pin even though it looked okay and am thinking of trying to change it but before I do something as complicated as that, I figured I'd ask here to see if anyone has had a similar problem and what you did to correct it.
As far as I am aware, it happens on random cylinders - not always the same ones although I need to double check that next time I bring it to the range. The rounds that have failed to fire do get it by the firing pin but only have shallow dents.
Any help, from someone who has experience solving a similar problem, would be appreciated. Thanks.
