CZ bolt face defects

The Accurate Reloading Forums

This topic can be found at:
https://forums.accuratereloading.com/eve/forums/a/tpc/f/9411043/m/7671025331

30 May 2010, 23:43

JD Miller

CZ bolt face defects

I have a CZ 527 223 that has pit inclusions in the steel in the bolt face, like you might see in a bad cast with air pockets. These arent primer leak pits, and are in various locations on the machined bolt face surface, and edge of fireing pin hole, the pits were there since the rifle was new. The pits dont effect the function of the rifle but look like shit
Is this common on CZ rifles or did I get a bad bolt made of junk steel?

31 May 2010, 08:27

JD Miller

Anyone own a CZ 550 or 527?

.

31 May 2010, 09:17

craigster

I've got a CZ 527 Varmint in 204. The bolt face looks pretty close to perfect, nothing at all like yours.

31 May 2010, 10:06

Michael Robinson

Generally, small imperfections on a bolt face are not problematic.

Not pretty, but not a problem.

Can you post a photograph?

31 May 2010, 20:44

M1Tanker

I have 2 550's and 2 527 as well as a few 452's. None of them have any pitting of any type on the bolt faces. A couple show some very minor tooling marks though.

William Berger

True courage is being scared to death but saddling up anyway. - John Wayne

The courageous may not live forever, but the timid do not live at all.

31 May 2010, 21:23

bartsche

quote:
Originally posted by JD Miller:
Anyone own a CZ 550 or 527?.

I do, 527 American in .222, but don't have that condition on the bolt face.

roger

Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..

31 May 2010, 22:05

JD Miller

Tryed to take pictures but they suck, not enough pixle camera

01 June 2010, 00:57

GLShooter

I've got pair of 527 204's. The bolt faces are smooth as a baby butt.

Greg

01 June 2010, 02:44

tin can

I have a 527/.223; the bolt face is smooth, finished well.

01 June 2010, 03:05

shootaway

My CZ 550 has a very nice bolt face-smooth and polished and almost never needs cleaning.

01 June 2010, 23:20

wildboar

My 550 cal. 9.3 has a well finished bolt face; my 527 has a fairly well finished bolt face, with some minor tool traces.

02 June 2010, 11:56

Ozzie

Mine are good

09 August 2010, 08:22

Alta.Separatist

We have 2 - 527 's in .223.
my daughter's American has a slightly rounded off edge on her bolt, and on mine there are three ever so slight indentations near the firing pin hole... just wondering if there would be any structural problems... agree with J D Miller; they sure don't look good, junk steel?

10 August 2010, 19:45

Bill Leeper

I have seen this on a CZ as well and thought it to be a casting flaw (my feeling was that a piece with such a flaw had to be a casting). I didn't like it and bushed the bolt face to get rid of the pits. There appeared to be no pits further down but I have to say, the thought that a visible flaw might indicate a hidden one, did kind of nag at me. Regards, Bill.

10 August 2010, 20:01

MikeMichalski

My 527 .22 Hornet's bolt face has a couple of minor machining marks but no pits.