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Old 01-19-2013, 18:57   #923
Snapper2
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Join Date: Feb 2008
Location: s.east Texas
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Quote:
Originally Posted by unit1069 View Post

It just hasn't made any sense to me why Glock uses a standard 18# spring for 9mm, .40S&W, and .357sig. Instinctively I feel that .40S&W and .357sig should have a heavier spring load than 18# as standard issue.
The large frame glocks 45 and 10mm use the same stock recoil spring and its about the same spring weight as the 9,40 and 357sig. Slide weight and momentum probably decide the weight of a recoil spring. Returning the slide to battery is its main purpose. I've used a heavy recoil spring(23#) in a g30 shooting 400 corbon. It was more reliable with the stock spring and put a lot more wear on the slide lock with the heavy spring.
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