CZ Shadow 2 Spring weight Opinion sought

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chicu1981

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Hi I just bought an 11lb spring for my CZ shadow 2.

The ammo i intend to use has a velocity of ~1200 fps and bullet weigh tis 124 grain. SO the power factor is ~148. Is this an appropriate weight spring which wont damage my gun?
 
I don't think 9mm is strong enough to kill a gun upon recoiling. If you were shooting 40 cal or 10mm when then maybe this could be something, but 9mm....not so much.

Pick the spring that runs your gun flatter. If you are worrying about battering the frame, your gun should have a rubber buffer to reduce wear.

With that being said, I think your spring is on the light side for such load: lots of muzzle flip.

Just my 2 cents.
 
You will beat your slide stop to death without a strong enough recoil spring. I use a 10lb spring for my reduced power PPC loads and I can tell you that it's too light a spring for an IPSC load. Leave the 16lb factory spring in there for that ammo. I use the 16lb spring and my ammo is at 133 PF
 
I've run about 15k rounds of 132 pf loads through two different Shadow 2's with an 11lb recoil spring with no ill effects, prior to that I've run 20-30k through an SP-01 Shadow in the same setup again without issue. The CZ factory guys are running 8lb recoil springs now in their Shadow 2's. The pressing question is why such a stout load?
 
I normally shoot 124 GR reloaded ammo which comes in at 1050fps or 124 GE factory ammo, which comes in at 1200fps.

I find the slide to be very difficult to handle due to the angle on the slide. Not sure if there is different technique.
 
chicu1981 said:
I normally shoot 124 GR reloaded ammo which comes in at 1050fps or 124 GE factory ammo, which comes in at 1200fps.

I find the slide to be very difficult to handle due to the angle on the slide. Not sure if there is different technique.
Click to expand...

If you work the slide using the overhand or slingshot method via the rear of the slide, it can be a bit "difficult" to get a good grab on it. I started working the slide using the front of the slide by rotating the pistol sideways and cupping the slide between my thumb and index finger.
 
Chilidip said:
Handle in regard to what action?
Click to expand...

1. racking the slide. I got bruised finger shooting a PPC. I have 13 other handguns from the likes complete HK lineup to a Sigs and 1911s etc. But CZ shadow 2 has a poor ergonomics for racking the slide, it is angles and it just slips so one needs to hold it tighter.
 
Trinimon said:
If you work the slide using the overhand or slingshot method via the rear of the slide, it can be a bit "difficult" to get a good grab on it. I started working the slide using the front of the slide by rotating the pistol sideways and cupping the slide between my thumb and index finger.
Click to expand...

I will try that. I normally use the slingshot method. If you dont mind in your spare time can you post picture on how you rack the slide.
 
chicu1981 said:
1. racking the slide. I got bruised finger shooting a PPC. I have 13 other handguns from the likes complete HK lineup to a Sigs and 1911s etc. But CZ shadow 2 has a poor ergonomics for racking the slide, it is angles and it just slips so one needs to hold it tighter.
Click to expand...



But other than that this gun is really great. Weight balance etc.
 
I just went through my match videos but on load and make ready all you see is the muzzle from my hat cam. Essentially I just pinch the front serrations near the muzzle with my thumb and the side of my first finger.
 
If you have one of the 13 lb springs as well I'd try that first.

The thing is that you protect the slide stop from breaking with the strongest spring you can use which will still eject the cases cleanly and which will still lock back at the last shot. Weaker than this may or may not be strong enough to keep the slide from beating up the slide stop pin and eventually snapping it. On the other hand signs of too strong a recoil spring for the ammo you're using is a short weak ejection path of the cases that just barely dribbles out over your hand.

I want to see the casings thrown up and away in an arc which comes back to the level of the gun about a meter (3 feet) to the side. And that means that they hit the ground about 2 or 2.5 meters away. More than that suggests the recoil spring is too light. Much less is at risk of more frequent stove pipe jams and failure to slide lock on the last round.
 
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