RaylanGivens Posted October 8, 2017 Share Posted October 8, 2017 I clean the extractor every time I shoot my STI Trubor Open gun... A while ago I noticed that the sides of the firing pin spring were wearing, so I replaced it with a Wolfe FP spring that came with a recoil spring... Didn't think much about it but I started having a small amount (maybe 1 out of 200) light strikes... When I checked the Wolfe spring with the OEM STI spring, I noticed that the Wolfe FP spring was much longer that the OEM STI spring... See attached picture. I'm using a Dawson extended firing pin spring and have never had light strikes with them in my limited guns... I check the primers after I finish reloading and they all look good. Is there a preferred firing pin spring for STI Open guns? Link to comment Share on other sites More sharing options...
mach1soldier Posted October 8, 2017 Share Posted October 8, 2017 I always clip 3-4 coils off the Wolff springs. Never an issue. The big thing is make sure the spring is always longer then the tip of firing pin when mounted. They really never go bad Link to comment Share on other sites More sharing options...
zzt Posted October 9, 2017 Share Posted October 9, 2017 The Wolff springs are extra power. The theory is it will help prevent a 70 series pistol dropped on the muzzle from firing. I have a dozen or so that came with recoil springs that I will never use. I prefer ISMI springs for the firing pin, and have gone to them for recoil as well as mag catch and plunger tube springs. The are quite consistent. Link to comment Share on other sites More sharing options...
jcc7x7 Posted October 9, 2017 Share Posted October 9, 2017 Every body is different with different experience Never a problem with wolff springs Been using them for 43 years recoil, fp and mag release Only time I change FP spring is when FP starts to show signs of drag on the primer Link to comment Share on other sites More sharing options...
d_striker Posted October 9, 2017 Share Posted October 9, 2017 1 hour ago, jcc7x7 said: Every body is different with different experience Never a problem with wolff springs Been using them for 43 years recoil, fp and mag release Only time I change FP spring is when FP starts to show signs of drag on the primer I never thought of that but it makes sense. Link to comment Share on other sites More sharing options...
Bdh821 Posted October 9, 2017 Share Posted October 9, 2017 2 hours ago, d_striker said: I never thought of that but it makes sense. Looks like I need to replace my FP Spring. Didn't even think of that either. Link to comment Share on other sites More sharing options...
RaylanGivens Posted October 12, 2017 Author Share Posted October 12, 2017 On 10/9/2017 at 8:57 AM, zzt said: The Wolff springs are extra power. The theory is it will help prevent a 70 series pistol dropped on the muzzle from firing. I have a dozen or so that came with recoil springs that I will never use. I prefer ISMI springs for the firing pin, and have gone to them for recoil as well as mag catch and plunger tube springs. The are quite consistent. Checked on the ISMI firing pin springs and they all seem to be heavy duty... Seems like that would make it harder to push the firing pin and would lead to light strikes? Link to comment Share on other sites More sharing options...
zzt Posted October 12, 2017 Share Posted October 12, 2017 All the ISMI firing pin springs I have are softer than the Wolff extra strength springs. Link to comment Share on other sites More sharing options...
1911builder Posted October 27, 2017 Share Posted October 27, 2017 I change my firing pin springs when I change my recoil/mainspring Link to comment Share on other sites More sharing options...
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