Orbit Posted September 28, 2017 Share Posted September 28, 2017 (edited) Friends, I am now reloading and be able to create my ideal recipee for 9mm loads. Now, I am in the process of finding the right combinations of recoil and main springs weight. My load is the following: 147g projectile 1.112" OAL 3.3 TG I am looking for the best combinations of recoil/mainsprings weights for the following pistols: CZ Shadow 1 & 2 STI Spartan Thanks Edited September 28, 2017 by Orbit correction Link to comment Share on other sites More sharing options...
Broncman Posted September 29, 2017 Share Posted September 29, 2017 Or backwards. Tight narrow end on firing pin Link to comment Share on other sites More sharing options...
bluedevil008 Posted October 2, 2017 Share Posted October 2, 2017 It's going to come down to how your load fires in your gun and your personal preference. I use a 17# MS with a 10# (IIRC) recoil spring for my 3-gun setup in my 5" Eagle with lightened slide and bushing barrel. Wolff sells a spring set that comes with a bunch of weights so we can swap them out real quick and figure out what you like. Link to comment Share on other sites More sharing options...
msg73 Posted October 7, 2017 Share Posted October 7, 2017 Spartan V: 17lb main and 9lb recoil CZ SP01: 11.5 main, 10lb recoil CZ Shadow 2: 11.5 main, 10lb recoil I've used 147gr Acme and 124gr Acme/Extreme plated/MG CMJ. Link to comment Share on other sites More sharing options...
Orbit Posted October 12, 2017 Author Share Posted October 12, 2017 Hi bluedevil and msg73, i did my chrono yesterday and prefer the loads of 130pf 9mm, using titegroup. After that i tried different recoil spring and preferred the following even though a bit bouncy: STI Trojan/Spatan -orig MS and 10 lbs recoil CZ Shadow 1 & 2 -13 lbs ms and 11 lbs recoil I will still do some test with videos. Link to comment Share on other sites More sharing options...
mike4045 Posted October 17, 2017 Share Posted October 17, 2017 17# mainspring with a 10# recoil spring. I have a 2011 with lightened slide and a marauder with same setup.I also run about 135 140 of loads in my guns. Link to comment Share on other sites More sharing options...
msg73 Posted October 19, 2017 Share Posted October 19, 2017 Find a main/hammer spring that will set off your primers reliably, then play around with different recoil springs. Go out and shoot two quick shots in a clean target and see where your second shot lands relative to the first. If the 2nd shot is low, that usually means the recoil spring is too strong (or you're jerking the trigger). Keep trying until you see a consistent pattern Link to comment Share on other sites More sharing options...
BangSwitch Posted November 15, 2017 Share Posted November 15, 2017 On 10/19/2017 at 3:08 PM, msg73 said: Go out and shoot two quick shots in a clean target and see where your second shot lands relative to the first. If the 2nd shot is low, that usually means the recoil spring is too strong (or you're jerking the trigger). Keep trying until you see a consistent pattern ^^^ Really good advice! Link to comment Share on other sites More sharing options...
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