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Discussion Starter · #1 ·
I just installed Wolff's 10lb hammer spring in my USP9c. I absolutely love the feel of the pull when dry-firing: light and crisp. I hope to get out to the range as soon as possible. The only thing that worries me is the possibility of failure to fires, since I'm going to 10lb from the stock 14lb. Does anyone have any experience with this problem occurring after reducing the spring power?
 
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I have gone as low as 8lbs without adverse effects on my USP expert.
Test it with your chosen ammo and watch for hard primers and light strikes, if it works realiably you are ok, I could say that you would be fine as I believe that you will but such a statement would be irresponsible as you need to ensure by testing personally.
 
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