Clint007 Posted May 27, 2019 Share Posted May 27, 2019 I finally got around to swapping out the factory recoil spring and tried a 13 pound spring. I recall hearing the factory is 17#? I have also 11# and 15# . With the 13# spring I noticed the gun shoots flatter, there is less oscillation at the end of the shot as the gun comes back down. I’ve put 1000 round thru and have no malfunctions, testing both slide lock reloads using the sling shot method and (faster but technically improper) pushing down on the slide lock button. But, I do notice that now with the lighter spring, if I do a press check, and release, the slide doesn’t return automatically forward fully into battery, I have to do a manual forward “assist” (Push on it with my thumb). How might I tell, however, if the slide is banging on the frame with this lighter spring, leading to cumulative damage? Thx clint Quote Link to comment Share on other sites More sharing options...
jpm2953 Posted May 27, 2019 Share Posted May 27, 2019 I never have an issue with a 13lb spring in a 1.0 or 2.0. Several thousand rounds through both of mine with no issues. I don’t like the 11 or 12 though. Had the failure to completely return to battery several times. Odd that one pound makes such a difference. To answer your question though, I don’t know. I’ve never seen any excessive wear on mine. Quote Link to comment Share on other sites More sharing options...
saab Posted May 27, 2019 Share Posted May 27, 2019 The 13# works well for my 5" pro. Has anyone else had the problem of the spring slipping over the head of the guide rod screw? I destroyed 2 ISMI springs trying to get them to work... Quote Link to comment Share on other sites More sharing options...
jpm2953 Posted May 27, 2019 Share Posted May 27, 2019 8 minutes ago, saab said: The 13# works well for my 5" pro. Has anyone else had the problem of the spring slipping over the head of the guide rod screw? I destroyed 2 ISMI springs trying to get them to work... Why not run them Uncaptured? Quote Link to comment Share on other sites More sharing options...
MemphisMechanic Posted May 27, 2019 Share Posted May 27, 2019 18 minutes ago, saab said: The 13# works well for my 5" pro. Has anyone else had the problem of the spring slipping over the head of the guide rod screw? I destroyed 2 ISMI springs trying to get them to work... Leave the screw head out and run them uncaptured. Makes cleaning the rod and spring much easier and it’s not very tough to assemble. Quote Link to comment Share on other sites More sharing options...
jcc7x7 Posted May 27, 2019 Share Posted May 27, 2019 13 hours ago, Clint007 said: How might I tell, however, if the slide is banging on the frame with this lighter spring, leading to cumulative damage? Inspect the end of the dust cover and the recoil block area where the dust cover hit when the gun is fully cycled to the rear Quote Link to comment Share on other sites More sharing options...
Clint007 Posted May 27, 2019 Author Share Posted May 27, 2019 1 hour ago, jcc7x7 said: Inspect the end of the dust cover and the recoil block area where the dust cover hit when the gun is fully cycled to the rear Ok thank you c Quote Link to comment Share on other sites More sharing options...
Bench Posted May 28, 2019 Share Posted May 28, 2019 9 hours ago, MemphisMechanic said: Leave the screw head out and run them uncaptured. Makes cleaning the rod and spring much easier and it’s not very tough to assemble. What he said^...no problems with running my 9mm Pro with the screw out that way...go for it!!! Quote Link to comment Share on other sites More sharing options...
saab Posted May 29, 2019 Share Posted May 29, 2019 On 5/27/2019 at 9:16 AM, jpm2953 said: Why not run them Uncaptured? Didn't know you could do that... Thanks! Quote Link to comment Share on other sites More sharing options...
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