Thread: ZKK-600 7x57 Hard to chamber

Originally Posted by Marty Henry

Take a factory round coat it in engineers blue or black felt marker and gently chamber it stopping when there's definite resistance remove and see where it's binding. Failing that take a chamber casting, sulphur and graphite works well and compare it to the Sammi specs.

Copy that, I’ll give that a go tomorrow and post the results.

I’m assuming it’s a case of identify and remediate each time until it’s not needing to be forced in ?