Kumaabear wrote:Took it to sight in yesterday
-The trigger is really addictive, having the set trigger there almost feels like cheating.
-Shoots well, but really hates Winchester deer season about 2 inch groups thought I would try it as it’s 64grain and barrel is a 1:9 twist.
-Hornady TAP 60 grains were shooting bang on 1 inch groups.
I do have an issue with feeding. For some reason the first and second rounds out of a full magazine is super stiff.
If I don’t really slam the bolt forward like I hate it the rifle will actually jam, I know that mausers like it rough but compared to my CRF model 70 I really do have to hit the little CZ very hard and fast on the first two out of the mag.
My theory is rough/sharp feed lips grabbing the brass mixed with high follower spring pressure. I might take some wet dry and a little oil and try to polish the feed lips. I have left 5 empty shells in the magazine to try and lower the spring strength a bit.
Anyone else have any other ideas?
I've owned a couple of these - including a full wood version that was a lovely shooter, but ultimately made way for a Sako.
The problem is in the bolt tolerances of the Mauser design. CZs are renowned for it.
There's a lot of slop built into the action on purpose - it makes them indestructible in the field (they can be filled with dirt, mud and other muck and still keep working), but will give you grief if you do not cycle it smoothly, especially those first couple of rounds out of the mag that are tighter under spring pressure.
What happens is, as you push the bolt forward, it rocks to the side and gets caught inside the action. This is the result of not pushing the bolt forward
exactly in a linear fashion. As we cycle the bolt with our right or left hand, there is a tendency to push the bolt with more pressure on one side than the other - and that is what causes it to jam. It will get a little better as the bolt wears in, but will always be there.
As a consequence, a lot of CZ 527 owners have developed a new technique where they push the bolt with their thumb directly on the back of the bolt - not on the bolt handle - to help it move forward in a straight line and not wobble to the side.
Give it a try if you can, as you will notice the difference.
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Hold the bolt with your fingers, and put you thumb directly behind (silver part of bolt) and push forward - that will cure your jams.
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