CZ 527 6.5 Grendel Feed Problems

[Harpoon1]

A friend just purchased a CZ 527.
The bolt is really sticky, does not want to cycle.
He tried running the bolt (empty) hundreds of times to try to work it in and get it to cycle, even put some lapping compound on the bolt.
No joy.
If you push the bolt in directly from the rear using thumb or finger it will easily chamber a round.
Using the bolt handle, not so much.
Anyone know a fix?

Take the claw extractor off and GENTLY bend it lengthwise, putting SLIGHTLY more “bow” in it.

https://youtu.be/1pmu-51tLPU

Some cycle better than others, this will help some more than others but, it won’t cure all of them.

While mine isn’t bad, I’ve trained myself to just use the “thumb behind the bolt” technique on ALL bolt action rifles. Thats helped all of them feed better.