Page 1 of 3 123 LastLast
Results 1 to 10 of 22

Thread: floating barrel problem with cz455

  1. #1

    floating barrel problem with cz455

    Hi folks,

    some suggestions would be much appreciated.

    After the appearance of some accuracy problems with a CZ455 in .22LR, I did a thorough check of the rifle.

    It turns out that the barrel was pressing against the stock: when the front stock screw is tightened fully, it forces the barrel down against the stock.

    What would people suggest as a possible solution?

  2. #2
    Having seen several 455's with similar problems, my first thought would be that the inletting is too loose. I would suspect that even with everything tightened down to (reasonable) levels, there will still be some movement within the stock. If so, the simplest and most effective solution is to bed it.

    When things are stable, you can check again and if you are still not satisfied, carefully take a little out to release the barrel.

    HTH
    Knots

  3. #3
    You have what is know as pressure point bedding and was quite normal.

    Now what ammunition did you try?

    Did you consider it might be an ammunition problem?

    Have you checking your sightign arrangement to eliminate that as the problem?

  4. #4
    Thanks Brithunter.

    In understood that the CZ455 was meant to have a floating barrel? It is certainly sold as such...

    Ammunition has been Winchester 40gr subsonics and CCI Velocitor.

    Sight checked.

    Problem is not devastating, just an opening up of the groups at 50m, with the occasional (1 in 8 or so) flyer.

  5. #5
    I am not up to speed on the newer models I have to admit. I suppose the free floating mantra has even effected CZ for their sales in the US .

    I gather the rifle is fairly new. So if it was me I would clean the barrel and chamber and carefully inspect the crown for any minute burrs. Cotton bud will catch on any present. Then start over with zeroing and testing. If possible try some ammunition from a different batch................................ they can and do vary.

    I really do suspect ammunition it the cause.

  6. #6
    Quote Originally Posted by Brithunter View Post
    I am not up to speed on the newer models I have to admit. I suppose the free floating mantra has even effected CZ for their sales in the US .
    I take it you're a sceptic... I'd be curious to hear why? I really don't know enough to make a sensible judgement, so would be very interested to hear the pros and cons.

  7. #7
    I`m not sure what your groups were like. but with Winchester subs, don`t expect too much.

  8. #8
    Quote Originally Posted by Mungo View Post
    I take it you're a sceptic... I'd be curious to hear why? I really don't know enough to make a sensible judgement, so would be very interested to hear the pros and cons.
    Manufacturers, or rather their accountants, jumped on free floating as it's cheap and quick to do. Where a proper pressure point bedding takes more skill and time. Same goes for the "Anti Glare" finish so touted by manufacturers now. in fact it's a cost saving measure as it takes a few seconds to bung a barrelled action through a bead blaster against much more time to properly polish for blacking. Sales then jump on it and hype it up as the latest desirable thing and the punters fall for it.

    Kiln dried wood is the same thing it's a cost saving idea hyped up and the best thing when if fact it's not. Kiln dried timber is vastly inferior to Air dried timber and so it goes on. In the US the "Free floating" mantra has a real hold. So much so that one reads about a shooter buying a new rifle and straight away stripping it down to free float it BEFORE they have even shot it. They then brag how well it shoots yet it may well have shot better before they messed with it and of course all warranty is now voided.

    Yes some rifles will shoot better floated others shoot better with the pressure point. Have a barrel free of any support past the receiver ring puts a lot of pressure on the front bedding and i have seen quite a few where this has crushed the bedding area over time. One rarely sees this with a pressure point bedding in the fore-stock as there is not the huge cantilever effect.

    I once too swallowed the gun whores diatribe about floated barrels and to my shame wrecked the bedding on a Swedish mauser to free float it since then I have learned that this is not always the best way. The majority of my rifles still have their pressure point bedded stocks.

  9. #9
    There is loads of room on my CZ 455?

    Steve.

  10. #10
    Quote Originally Posted by Rake Aboot View Post
    I`m not sure what your groups were like. but with Winchester subs, don`t expect too much.
    interesting comment Rake, friend of mine just bought a cz .22, first real rifle after air rifles, and got 500 winchester subs at the same time. he wasnt getting particularly good groups even after he had fired 3 or 4 hundred through it over a couple of months, I handed him a box of RWS subs and 'bobs your mothers brother', a little group....and another....and another.

    suprised me I must say cos I used to use a lot of win subs 10 15 yrs ago and really liked them....things change I suppose.

Similar Threads

  1. Difference between CZ452 and CZ455
    By Pine Marten in forum Rifles & Calibres
    Replies: 63
    Last Post: 12-11-2012, 18:18
  2. Hatsan Escort-loose barrel problem
    By Triggermortis in forum Other Shooting & Keepering
    Replies: 10
    Last Post: 24-07-2012, 21:37
  3. My diy barrel free floating
    By griffshrek in forum Cleaning, Gunsmithing and Equipment Care
    Replies: 8
    Last Post: 31-05-2012, 17:12
  4. Parker hale floating barrel
    By nicholiath in forum Cleaning, Gunsmithing and Equipment Care
    Replies: 8
    Last Post: 26-05-2011, 09:40
  5. Free Floating Stutzens?
    By techman in forum Ammunition, Reloading & Ballistics
    Replies: 9
    Last Post: 19-08-2009, 19:49

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •