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Factory 9mm Soft Primers


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Planning to run a 13# hammer spring in a couple of CZ’s. What factory ammo tends to have softer primers other than just Federal? I have a fair amount of S&B 115 and 124 ammo, but I don’t think S&B is known for soft primers. How about Fiocchi or Magtech? I have a small stash of those available too. But, if I need to purchase something else, Federal, etc... I will. 

Edited by Stafford
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Ran the S2 and SP-01 today with the 13# hammer springs. No issues running factory S&B 115. Couldn’t tell much about the ejection with the 13# recoil springs since it’s an indoor range.

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As others have said, 13# main spring should light anything, but I would put in the extended firing pin with reduced power FP spring just to be safe. 

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On 1/28/2020 at 9:43 PM, Flyingpig said:

I run and 11.5# with a plain ole factory firing pin with RAMI pin spring and it lights off everything. Actually both my S2s do. Same setup.

 

Same here. 

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On 1/27/2020 at 12:14 PM, regor said:

As others have said, 13# main spring should light anything, but I would put in the extended firing pin with reduced power FP spring just to be safe. 

This is what I did and it’s been going strong for a year and a half maybe two years now with cci,rem.

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  • 3 weeks later...

I run the light 11.5 with an extended fp. Unlike some of the other posters cci are only usually for me but not always. The only always is federal. With 13# springs everything works, but I like the light trigger

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