light strikes FTF- odyssey of a kadet

[joerchi69]

Did a little filing to the ejector but could not entirely match the angles like on the sketch of the paper serviette.



Tested it with some shooting, thankfully no stovies with that try, notably loose holding grip,
 and the pattern looked like that


compared to the unfiled pattern pic, it looks to me that the cases hit more to the rear and to the edge than before mod
(one light strike in maybe 80rds, fired when reloaded)

[joerchi69]

I couldn't get an ID.

Hope it helps you find a spring.

Looks like a right wire diameter was already mentioned by painter some time ago..

This adviced firing pin spring is working very good in my kadet. Tested that new lighter FP spring for some time now - with my preferred ammo CCI standard velocity. Wire die 0,40 mm/ 0.0157 inch, length 30 mm/ 1,2 inch. outer dia 4mm / 0.157 inch.  Did not get one with the exact wire dia of painters FP spring. But quite close. It just strong enough to keep the firing pin retaining plate always in place. But it reduces the resistance to the hammer blow with the 17 lb hammer spring. And fair force reaches the rim for uninterupted ignition.

With the same other configuration since October 09, 2020 :  the heavier tactical sports hammer and the optimised FP4. And the slightly lighter trigger spring with wire dia of 0,8mm / 0,0315 inch. The trigger pull wight is estimated around 1,1 Kg / 2,5 lbs . Recoilspring is in original length. Flunatec ceramic gun coating cleaned gun. Some stovies, i get only if i use very soft shooting match ammo.

[MuayThaiJJ]

This adviced firing pin spring is working very good in my kadet. Tested that new lighter FP spring for some time now - with my preferred ammo CCI standard velocity. Wire die 0,40 mm/ 0.0157 inch, length 30 mm/ 1,2 inch. outer dia 4mm / 0.157 inch.  Did not get one with the exact wire dia of painters FP spring. But quite close. It just strong enough to keep the firing pin retaining plate always in place. But it reduces the resistance to the hammer blow with the 17 lb hammer spring. And fair force reaches the rim for uninterupted ignition.

With the same other configuration since October 09, 2020 :  the heavier tactical sports hammer and the optimised FP4. And the slightly lighter trigger spring with wire dia of 0,8mm / 0,0315 inch. The trigger pull wight is estimated around 1,1 Kg / 2,5 lbs . Recoilspring is in original length. Flunatec ceramic gun coating cleaned gun. Some stovies, i get only if i use very soft shooting match ammo.

Where did you get that firing pin spring? I'd like to try

[joerchi69]

Hi MuayThaiJJ  -  i am located in Germany. I did a research for springs in the internet and found it somewhere i dont remember - and i ordered different springs on different points in time. Could have been ebay.. and spring shops there, too.
Just put in the data - and start comparing what is comming up - close to the above mentioned dimensions :
Wire diameter 0,40 mm/ 0.0157 inch, length 30 mm/ 1,2 inch. outer dia 4mm / 0.157 inch.
You will find specialiced stores and dealers for springs. If it is too long - you can cut it down.

[MuayThaiJJ]

Hi MuayThaiJJ  -  i am located in Germany. I did a research for springs in the internet and found it somewhere i dont remember - and i ordered different springs on different points in time. Could have been ebay.. and spring shops there, too.
Just put in the data - and start comparing what is comming up - close to the above mentioned dimensions :
Wire diameter 0,40 mm/ 0.0157 inch, length 30 mm/ 1,2 inch. outer dia 4mm / 0.157 inch.
You will find specialiced stores and dealers for springs. If it is too long - you can cut it down.

Thanks, just bought this: https://www.ebay.com/itm/223576703180?var=522321871207

[joerchi69]

Hi MuayThaiJJ  -  i am located in Germany. I did a research for springs in the internet and found it somewhere i dont remember - and i ordered different springs on different points in time. Could have been ebay.. and spring shops there, too.
Just put in the data - and start comparing what is comming up - close to the above mentioned dimensions :
Wire diameter 0,40 mm/ 0.0157 inch, length 30 mm/ 1,2 inch. outer dia 4mm / 0.157 inch.
You will find specialiced stores and dealers for springs. If it is too long - you can cut it down.

Thanks, just bought this: https://www.ebay.com/itm/223576703180?var=522321871207

For a lighter not original FP spring - it looks like in the ideal range of variables to me.
What is the rason for changing the firing pin spring ? - Are you struggling with light strikes or stove pipes ?
How much lb does the installed hammer spring is having ? For wich Kadet System on what frame did you got the FP spring for ?

[MuayThaiJJ]

I modified my TSO to work with the SP-01 Kadet: https://youtu.be/gx3PAp9WEhA
At first I had some light strikes, but then it worked 100%. I have a 24# hammer spring

[joerchi69]

Sunday on the range with the Kadet and CCI SV - no light strikes no stove pipes  ( 0 °C, 32 °F )
The 17lb main spring with the lighter FP spring has enough power for igniting with the reduced contact area of the FP tip,
for comparison see a longer, smaller and deeper dent of a case picked up from a Feinwerkbau AW 93
 https://www.feinwerkbau.de/de/Sportwaffen/Kleinkaliberpistole/AW93


FP springs wire die 0,40 mm/ 0.0157 inch, length 30 mm/ 1,2 inch. outer dia 4mm / 0.157 inch.  Did not get one with the exact wire dia of painters FP spring. Heavier tactical sports hammer, 17lb hammer spring, modified FP4. Lighter trigger spring with wire dia of 0,8mm / 0,0315 inch. The trigger pull wight is estimated around 1,1 Kg / 2,5 lbs . Recoilspring is in original length. Flunatec ceramic gun coating cleaned gun.

[jimiguens]

For those with light primer strike issues with their Kadet kits or complete firearms check The Cajun Gun Works Extended Firing Pin SKU: 81080. Zero issues even with CGW 13lbs Main/Hammer spring and a lighter FP spring. Do not dry fire without Snap Caps or Dummy Rounds or FP will hit barrel breach face and potentially break.