858 Lube.
I was curious at first when i got my CZ in fall 2009 and after reading the manual wich says clean the whole rifle with WD40. Thats fine but wasn't the route i went.
Note: Too much oil on the bottom of the bolt carrier, espeicially the bottom of the bolt will cause a jam, keep the bottom of the bolt nice and clean and DRY. This is the part that picks up the new round.
My process is as follows.
After shooting, strip the rilfe down, pour some hot water down the barrell....Shake out the barrell, then run a CLP soaked patch through and let it sit. Wipe all parts down including the bolt carrier and its part with CLP, let it sit.
Go to town with the Qtips and clean the bolt face, hard to get areas and wipe all parts down good, pulling the barrell through a few more times, re-assemble and lock her up.
What i have found to provide the smoothest action ? ie, When you #### it how smooth it feels.. Forget oil..... take some crappy tire white lithium bearing grease on a q-tip and apply a small amount on the reciver tracks right and left, where the bolt carrier rides, put little dab every inch or so and #### it a few times, you will see what i mean and stays on there too.
Just check that you didn't apply too much and none of the grease has made it onto the bolt face.
And always keep the bore and chamber DRY before you shoot, un-like some know it all jerk stain with his CZ at the range that told me i should keep the chamber/bore well lubed ......
Hope this helps and have a safe time at the range or where ever !