chgofirefighter Posted October 23, 2020 Share Posted October 23, 2020 Both of my CZ S2's are using 9lbs recoil spring with 125gr .356 TC Blue Bullets and 3.9gr of Sport Pistol, prefer 125gr bullet as my happy medium for most applications. While its super soft shooting and flat, the slide tends not move into battery fast enough, seems to be a delay. Viewing a few slow mo video footages, it doesn't go into battery fast enough. The 13 lbs recoil spring tends to dip the muzzle downwards a bit. Haven't tried an 11 or 10lbs springs. What seems to consensus or happy medium for recoil springs? Need to test out the 12, 11 and 10lbs... Figured, I'll inquire before I embark on a test journey... Ammo components don't come easy these days~ Link to comment Share on other sites More sharing options...
jimcfur Posted October 23, 2020 Share Posted October 23, 2020 I used a 11lb in my S2 and sp-01 shadow try that I think that will be the one your looking for Link to comment Share on other sites More sharing options...
LuvDog Posted October 23, 2020 Share Posted October 23, 2020 All of mine are running an 11lb spring Link to comment Share on other sites More sharing options...
mveto Posted October 25, 2020 Share Posted October 25, 2020 Both mine are 11lbs as well, I get the best performance with them. Link to comment Share on other sites More sharing options...
Blue Jacket Posted October 25, 2020 Share Posted October 25, 2020 I am just getting ready to try an 11lb in my Shadow. Sounds like it may be the ticket. Thanks Link to comment Share on other sites More sharing options...
chgofirefighter Posted October 27, 2020 Author Share Posted October 27, 2020 Thanks! Tested the 11lbs today, worked very nicely... Link to comment Share on other sites More sharing options...
Blue Jacket Posted October 30, 2020 Share Posted October 30, 2020 On 10/27/2020 at 2:11 AM, chgofirefighter said: Thanks! Tested the 11lbs today, worked very nicely... good to hear. I’m heading to the range Sunday Link to comment Share on other sites More sharing options...
MicahSwan Posted October 30, 2020 Share Posted October 30, 2020 I used the 11lb in both my S2 for a bit, but tried the 10lb now in both for the last 8k rounds. I like it a lot. I feel like the least amount of for movement is with the 10lb. But I am also. Running around a 128 of 135gr projectile. If I were any higher HF I might go back to the 11lb. Link to comment Share on other sites More sharing options...
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