bolt action messed up while shooting it

[yongxingfreesty]

it was shooting fine at 50yds, grouped 1" all touching. WOW

placed it on the rifle rack and shot my .22lr for a little to take a break til the next cease fire is called. when i brought it out to the 100yds, it would not function for me anymore.

this is what i noticed

when pulling the bolt back and seating the bullet into the chamber, the safety cant be returned to safe and is always in the fire mode. when i take out the bolt assembly, the safety functions just fine. with the bolt in the gun and bullet in the chamber, i cant pull the trigger in fire mode. doesnt budge no matter how hard i pull the trigger.

when it worked at 50yds, at the end of the bolt there is a little space for the striker to stay back. now when i seat a bullet, it just goes forward and doesnt stay back ( i am guessing the firing pin is in the fire mode, i cant see it on the bolt face, but this is what i think)

any suggestions? does the bolt assembly look ok in the first pic? what about the internal hammer inside the gun in the second pic?

this is driving me crazy. i really wanted to shoot at 100yds today.

 

[Zack]

is it bent? I can not really tell, it looks slanted???

 

[armoredman]

Take whatever it is to a qualified gunsmith, let us know what he/she says.

 

[W.E.G.]

You could start by telling us what kind of gun it is.

You should have specified the type of gun in the thread title.
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[yongxingfreesty]

Whoops

It's a Czech 527 and I can't afford gunsmith service

 

[NCsmitty]

It's basically a mauser bolt, and they can create a situation if you inadvertently decock them out of the rifle. You need to determine if that happened. You have to get the cocking piece up the cam and on top.

Here's the manual if you don't have yours.

http://pdf.textfiles.com/manuals/FIREARMS/cz527.pdf

 

[yongxingfreesty]

Thanks for the manual!

I think I fixed it. Took it apart, unscrewed some screws only to have them screwed in again.

After puttin it back, I worked the action 10x and the striker stays back now.


I am so excited, can't wait to bring out to field again. : )

 

[yongxingfreesty]

here are some vids of the problem. the vid description may be wrong.


http://www.youtube.com/watch?v=mZY4s8xLqv8

http://www.youtube.com/watch?v=Hj7U3CecH1U

http://www.youtube.com/watch?v=gnxpwydk-WA

 

[TehK1w1]

If you haven't yet, function-check the safety before shooting it again. With some mauser-pattern rifles it is entirely too easy to reassemble the bolt in such a way that it will fire when the safety is disengaged. (Don't ask me how I know that >_> )

 

[Mizar]

yongxingfreesty, did you "unscrewed some screws only to have them screwed in again" BEFORE this happend? If you did, than tell us exactly what screws you screwed or uscrewed. Judging from the second and the third videos the set-trigger on your CZ 527 does not work right - The sear is not lifted during normal cycle of the bolt. It must operate either in "direct trigger" mode or in a "set trigger" mode.

P.S. The safety of 527's is blocking only the sear and the bolt, not the firing pin as the original Mauser 98.

Boris

 

[stubbicatt]

Your bolt is broken. Picture #1 shows the extension behind where the cocking handle interfaces is broken a chunk out of it. The right rear of the bolt. The cocking camway.

That's my take on it anyways.

 

[Mizar]

It's been a while since I messed with CZ 527, but the bolt looks fine to me... Maybe I am missing something. But even with broken cocking cam the rifle should cock the firing pin when the bolt is retracted.

Boris

 

[yongxingfreesty]

mizar, i didnt mess with it before shooting it. i bought it from a member on here and shot 20rds through it at 50yds. i set it down for 30minutes before going to 100yds and that's when i noticed the malfunction. it wouldnt let me pull the trigger even though there was a round in the chamber.

i decided not to look at it at the range (scared of flying parts into the grass that I wont ever find).


stubbicatt, can you circle which part in the picture please? i am having trouble following. i think i have it working now too, havent shot it since then.

 

[stubbicatt]

oh well. guess i was wrong.

 

[rcmodel]

On a CZ-527, the little whipperbill on the back of the bolt sleeve that holds the striker together can be assembled upside down.
When it is upside down, the rifle won't work, as you discribed.

It has a tab like extension and that must point down toward the receiver tang when the bolt is assembled and in the rifle.

Yours was put on upside down by somebody.

Part #21 - page 11.
http://www.czub.cz/navody/cz527_en.pdf


rc

 

[Mizar]

Rc, if the bolt sleeve was assembled upside down the bolt will not be working properly in either direct or set trigger mode. In the third video it is clearly visible that the bolt is assembled propelrly but the firing pin will only cock if you push the set-trigger before closing the bolt. The problem was (is) improper adjustments of the trigger adjustment screws.

Boris

 

[benzy2]

It certainly does look as if the sear engagement is set too light causing the bolt to not cock when in the regular mode yet cock in the set mode. Follow the manual on increasing the sear engagement on the trigger set screw. This should remove the problems noted. Part of the problem with a quality adjustable trigger is that you can adjust it too far and cause functioning problems.

 

[rcmodel]

In the third video

That right there is my problem.
I don't watch videos on my old computer!!!

Like me, it's too darn old to run like it used too!

rc

 

[Mizar]

Like me, it's too darn old to run like it used too!

Delusion is the proper term for this quote...

Boris