CZ-82 + 18lbs Wolff spring = gritty slide movement?

[Snowdog]

I've come to the conclusion that the recoil spring that came with my CZ-82 might be a bit tired, contributing to somewhat sharp recoil.
I'm well aware blowbacks will always provide nastier perceived recoil than a locking breech design of the same caliber, though I believe any steps towards reducing any unpleasantness is a decent investment of time.

I after scouring reports from various sites on the intrawebnet, I concluded the 18 pound spring is considered heavy enough to make a difference while not affecting reliability.

After the easy installation of the new spring, I noticed there's a seemingly gritty quality to the movement of the slide, whereas it was nearly butter-smooth with the original spring.
Just out of curiosity, I reversed the spring in case there was an area of the spring could be rubbing the barrel... no difference.

I have yet to function-fire the CZ after installing the spring and things could very well smooth out during this outing. However, I'm curious if others have noticed such a change after installing heavier Wolff springs.

Thanks in advance!

 

[Guy de Loimbard]

I have the 16 lb spring on mine, and also notice the gritty slide movement. It doesn't affect function, but does lower recoil quite a bit. My guess is that the spring wire is slightly larger in diameter and rubs on the barrel.

 

[usp9]

It has been my experience that Wolff springs are not always exact duplicates of original springs. I suspect it is just a bit larger as has been mentioned. Be sure to coat the interior of your slide with a little lube before firing.

 

[Snowdog]

Thanks for the replies. Upon closer inspection, it turns out the spring seems to be hugging the barrel snugly, a bit more so than the original (as you two suspected). I guess some light grease along the barrel might help a bit.