Hello gentlemen:

Because the lack of really gunsmiths here, I do the repairs of mine and other friends shotguns.
This time is an AyA model 37 o/u, that do not strike enough the shotshells to ignite them.
I check strike force and is OK, but take measures of firing pins and the low only protrude 0.033" so I made a new firing pin with 0.060" and it is performing fine.
The upper firing pin protrude 0.046" and I think is enough tu asure the strike but yesterday it fails to ignite 1 time.
My question is, do you think 0.046" is not enough and I need to make a new upper firing pin or defective shotshells could be the cause?
For what I learned here, 0.060" is OK for making a new firing pin, but 0.046" it is also enough.

Give me your technical opinion, please. Making a new firing pin for this AyA is a lot of work (square rear part that need to make by file) but the worst part is to take out the pin from the shotgun, because you need to dessasamble all the shotgun (bolt lever).

Best,

Jose


Jose M. Fernandez