Fox Sterlingworth Firing Pin

[Macklew2]

Has anyone had a right barrel firing pin issue in an early Fox SW? I tried test firing some 2-1/2" low pressure roll crimped loads yesterday and on the first try, I got a dent in the primer of the right barrel. Tried same round (with dented primer) in the left barrel, no problem. Tried another one in the right barrel and got a fire. Seems like I might have a firing pin issue, but wanted others thoughts first. Thanks Brad

[Silvers]

Has anyone had a right barrel firing pin issue in an early Fox SW? I tried test firing some 2-1/2" low pressure roll crimped loads yesterday and on the first try, I got a dent in the primer of the right barrel. Tried same round (with dented primer) in the left barrel, no problem. Tried another one in the right barrel and got a fire. Seems like I might have a firing pin issue, but wanted others thoughts first. Thanks Brad

AH Fox shotguns do not have a separate firing pin; actually it's the tip of each hammer that contacts the shotshell primer. In any problem solving as reported here a single issue as with only one shell doesn't necessarily mean a problem with the gun. Often a misfire on one barrel indicates a minimal but acceptable firing tip protrusion BUT in combination with a "low primer". And switching the shell to the opposite barrel with a bit more firing tip protrusion will fire it. If that shell is 2-1/2" and roll crimped it sounds like it wasn't done on regular production loading machinery and somehow that primer might have been set in too deeply and only dented. That's a common problem with those who reload shotshells.

Another scenario is that the shell primer depth was OK but the tip of the hammer on that side is chipped or broken and thus a bit shorter than it should be. Firing tip protrusion on an AH Fox shotgun is typically .045 to .050" out from the breech face, and if you have a caliper with a depth slider you can easily measure to confirm. That's with the hammer(s) in the fired position. frank

[Macklew2]

Has anyone had a right barrel firing pin issue in an early Fox SW? I tried test firing some 2-1/2" low pressure roll crimped loads yesterday and on the first try, I got a dent in the primer of the right barrel. Tried same round (with dented primer) in the left barrel, no problem. Tried another one in the right barrel and got a fire. Seems like I might have a firing pin issue, but wanted others thoughts first. Thanks Brad

AH Fox shotguns do not have a separate firing pin; actually it's the tip of each hammer that contacts the shotshell primer. In any problem solving as reported here a single issue as with only one shell doesn't necessarily mean a problem with the gun. Often a misfire on one barrel indicates a minimal but acceptable firing tip protrusion BUT in combination with a "low primer". And switching the shell to the opposite barrel with a bit more firing tip protrusion will fire it. If that shell is 2-1/2" and roll crimped it sounds like it wasn't done on regular production loading machinery and somehow that primer might have been set in too deeply and only dented. That's a common problem with those who reload shotshells.

Another scenario is that the shell primer depth was OK but the tip of the hammer on that side is chipped or broken and thus a bit shorter than it should be. Firing tip protrusion on an AH Fox shotgun is typically .045 to .050" out from the breech face, and if you have a caliper with a depth slider you can easily measure to confirm. That's with the hammer(s) in the fired position. frank

I will measure that with my calipers and report my findings. Thanks Frank.

[Hilltop]

Very good explanation Frank. I ran into a very similar issue last year. I assumed it was a mechanical issue, but found out on factory loaded ammunition not all primers are the same. Some are harder than others and require a better strike.

[Silvers]

Thanks Cory for your comment. Honestly though, I know there are numerous gents here who could have answered that and similar tech questions but for some reason(s) so many hold back and wait for a comparatively few regulars - count them on a few fingers - to spend their time to answer. And now it's even gotten so that very few readers will even key in a thumbs up emoji to those that reply. I'm sure all have heard that quote about not knowing (call it valuing) what you have until it's gone.

I'd really like to start seeing answers by others who've been Fox students here for years and years. frank

[Macklew2]

Thanks Cory for your comment. Honestly though, I know there are numerous gents here who could have answered that and similar tech questions but for some reason(s) so many hold back and wait for a comparatively few regulars - count them on a few fingers - to spend their time to answer. And now it's even gotten so that very few readers will even key in a thumbs up emoji to those that reply. I'm sure all have heard that quote about not knowing (call it valuing) what you have until it's gone.

I'd really like to start seeing answers by others who've been Fox students here for years and years. frank

I agree Frank...I would really like to see better participation, but it seems like this is a "closed" group and no one wants to respond to the new people. My friend Ryan (Dutch) has posted several things on different areas of the forum and can't even buy a response even though he has his CC info in here on autopay . I sincerely appreciate each and every reply that you and others (researcher, foxnut, etc) have. It just seems like this group doesn't want new people. Too bad you are not like SASSS...that group is very encouraging and open to new members participation.