hawkeye40 Posted October 6, 2011 Report Share Posted October 6, 2011 Could anyone advise what the firing pin extrusion should be for a 12 bore. I have a winchester 101 and suspect the misfire problem is due to lack of pin protrusion. the pin does look a bit pitted. Any help appreciated. Quote Link to comment Share on other sites More sharing options...
M.I.A Posted October 6, 2011 Report Share Posted October 6, 2011 Have you looked at the primers on some fired carts? does it look like a light strike? May not be the pin, but more than likely the stirking force from the hammer??? Quote Link to comment Share on other sites More sharing options...
super sharp shooter Posted October 6, 2011 Report Share Posted October 6, 2011 (edited) Are you using eley firsts? Edited October 6, 2011 by super sharp shooter Quote Link to comment Share on other sites More sharing options...
hawkeye40 Posted October 6, 2011 Author Report Share Posted October 6, 2011 Yse, the mark on the primer is light. It could be a weak spring. I have removed the pin and it was relatively clean. The cartridge was an Express clay cartridge, it happened more than once. Quote Link to comment Share on other sites More sharing options...
Scully Posted October 6, 2011 Report Share Posted October 6, 2011 A pitted pin wont help,but a weak spring wont either.I would take it to your local dealer for a look see. There was a time when batches of 'hard' primers weren't unknown.but I would be surprised if this problem persisted today.Possibly a combination of a weak spring and a hard primer?101's are old guns nowadays;it wouldn't hurt to have it serviced,or at least looked at. Quote Link to comment Share on other sites More sharing options...
hawkeye40 Posted October 6, 2011 Author Report Share Posted October 6, 2011 A pitted pin wont help,but a weak spring wont either.I would take it to your local dealer for a look see. There was a time when batches of 'hard' primers weren't unknown.but I would be surprised if this problem persisted today.Possibly a combination of a weak spring and a hard primer?101's are old guns nowadays;it wouldn't hurt to have it serviced,or at least looked at. I guess you are right, I just like to do the amateur gunsmith bit and understand where the problem is first. Quote Link to comment Share on other sites More sharing options...
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