CZ550 American Magnum bolt knob Q's

Discussion in 'Gunsmithing' started by Kimberwarrior45, Jun 5, 2017.

  1. Kimberwarrior45

    Kimberwarrior45 New Member

    Joined:
    May 5, 2017
    Messages:
    9
    Likes Received:
    11
    Thought I would use the vast experience base to help me make a decision. I just purchased an older CZ550 American Safari Magnum 458 Lott. The rifle is great and ready for some work to make is mine BUT I hate the bolt knob and bent position. My bolt action experience is with comfortable large over-sized “tactical” bolt knobs (on specialized stocks) that stick out from the stock much more than the CZ. It is difficult to get my large hands fully under the CZ bolt knob and I despise the hole in the knob and not just for the aesthetics but the opening's sharp inner edge is almost painful when cycling. A search of the Internet describes several gunsmiths offering different options. The questions I have center around making this rifle for field hunting use in Africa:

    Does just straightening the bolt arm increase the space between the stock to make it worth wile?
    If you know, does just filling the hole in the bolt actually increase the perceived size of the knob?
    Would an over-sized knob cause problems in the brush? (am experienced with the scope clearance)
    What is your opinion of using a screw on over-sized knob? It would be permanently attached
    Would it be better to have a new bolt knob/arm attached instead?

    I thank you for your help and willingness to share you experience.
     

  2. Mekaniks

    Mekaniks GOLD SUPPORTER AH Elite

    Joined:
    Jan 20, 2014
    Messages:
    1,397
    Video/Photo:
    63
    Likes Received:
    2,223
    Location:
    Seward, Alaska
    Member of:
    SCI, RMEF
    Hunted:
    AK, WY, WA, ID, FL, SD, TX, HI, South Africa- Northwest Province
    So @gizmo turned me on to the Hornaday Bolt Ball. They are inexpensive and easy to install. I like them so much all my hunting rifles have them now. I didn't like the Hornaday logo, but it rubs off easily with your hand...The first pic is from amazon. The second pic is my rifle in Africa.
    IMG_0849.PNG IMG_0850.PNG
     
    gizmo and Velo Dog like this.

  3. Mekaniks

    Mekaniks GOLD SUPPORTER AH Elite

    Joined:
    Jan 20, 2014
    Messages:
    1,397
    Video/Photo:
    63
    Likes Received:
    2,223
    Location:
    Seward, Alaska
    Member of:
    SCI, RMEF
    Hunted:
    AK, WY, WA, ID, FL, SD, TX, HI, South Africa- Northwest Province
    And Welcome to AH:S Welcome:
     

  4. Kimberwarrior45

    Kimberwarrior45 New Member

    Joined:
    May 5, 2017
    Messages:
    9
    Likes Received:
    11
    Thank you for the welcome and info. I have ordered a knob to see how well it will work but still want to hear from others on their opinion and experiences.
    PS It looks like your battery will need charging soon:whistle:
     
    Mekaniks likes this.

  5. Velo Dog

    Velo Dog AH ENABLER GOLD SUPPORTER SILVER SUPPORTER AH Legend

    Joined:
    Mar 27, 2014
    Messages:
    2,883
    Video/Photo:
    58
    Likes Received:
    4,081
    Location:
    Anchorage
    Member of:
    NRA Life Member.
    Hunted:
    South Africa 3 times, Namibia 2 times, USA - most western states including Alaska and Hawaii.
    Hello Kimberwarrior45,

    Not only do I agree with you that the CZ 550 Magnum bolt knob is too small and the hole drilled in it is pretty weird but, I would add that the entire handle itself on this model is slightly too short as well.
    I own several CZ center fire, bolt action rifles from 6.5x55, through .500 Jeffery.
    Strangely enough the 6.5 was made with a longer bolt handle than the Magnum models were.

    I have had a local Gunsmith cut off the miniature bolt handles and weld on slightly longer / larger ones, made to approximately the same dimensions as, the original Pre-War Orberndorf Model 98 Sporting Rifle specifications.
    These are easier to find without taking my rifle from my shoulder, nor my eyes off the target.
    Neither do these larger handles cause any noticeable problems when I'm walking through thick vegetation.
    A simpler, less expensive solution is as you have already see, the Hornady product that Mekaniks pointed out.
    It looks like a clever and useful gadget.

    Cheers,
    Velo Dog.
     
    Bullthrower338, cagkt3 and ZG47 like this.

  6. gizmo

    gizmo AH ENABLER SPONSOR Since 2015 AH Ambassador

    Joined:
    Jun 26, 2014
    Messages:
    6,193
    Video/Photo:
    1,249
    Likes Received:
    8,348
    Location:
    Texas
    Member of:
    NRA Life Member, DSC Life Member, SCI Life Member, Exotic Wildlife Association, Texas Taxidermy Association Life Member, National Taxidermy Association, TTHA,DUCKS UNLIMITED
    Hunted:
    Romania, South Africa- Kalahari , Eastern Cape, USA, Fished Brazil, Mexico, USA
    Thanks @Mekaniks, I love the bolt balls. I also have one on my CZ 550 safari mag and it works like a champ. It's about the best upgrade you can do to anyrifle for under 10$. I'd say 3/4 of the rifles I actually use have them. Those that don't I put a tactical bolt handle on or they already had one on it from the factory.
     
    Artur S and Mekaniks like this.

  7. Kimberwarrior45

    Kimberwarrior45 New Member

    Joined:
    May 5, 2017
    Messages:
    9
    Likes Received:
    11
    Thank you Velo Dog for the response and sharing your experience,
     
    Velo Dog likes this.

  8. wislnwings

    wislnwings AH Senior Member

    Joined:
    Jul 26, 2013
    Messages:
    84
    Video/Photo:
    1
    Likes Received:
    48
    Location:
    Willow Spring, North Carolina
    I've got two CZ's, in 500 Jeff & 416 Rigby, and I can't stand the hole in the bolt. I might have to order one of those Hornady knobs to try out. Otherwise I thought about filling it with something and blending to the bolt contour. I remember seeing one somebody did using either hippo or warthog tusk that looked nice.
     

  9. V.Veritas

    V.Veritas AH Senior Member

    Joined:
    Jan 30, 2017
    Messages:
    73
    Video/Photo:
    1
    Likes Received:
    59
    Hunted:
    Canada, Namibia, South Africa
    Hi Kimberwarrior45,

    I had a similar issue with my bolt, but in addition, the sharp edge of the hole drilled into the bolt was uncomfortable on my hand. I wanted the hole filled in and the bolt straighten up. In the end I did not get exactly what I was planning for, but the result is very comfortable. The elongated ball extended enough the total length of the bolt that it became very quick to grab without being bulky.

    IMG_1316.JPG

    IMG_1317.JPG

    This is what I had originally in mind, but by gunsmith decided to save me some $ in the process and did not straighten up the bolt.

    CZ-550-action-Custom.jpg
     

  10. Kimberwarrior45

    Kimberwarrior45 New Member

    Joined:
    May 5, 2017
    Messages:
    9
    Likes Received:
    11
    I got the Hornady ball and though I have not been able to shoot with it on it has made a big improvement in my ability to cycle the action and feel secure in doing so. I used hairspray to lubricate the bolt knob and it still took some effort and finagling to get the ball over the knob. When the hairspray dried it helped hold the ball still on the knob , though I don't know how it would act without the hairspray. I do not see a way the ball can be removed without force being applied 90 degrees to the knob i.e nearly impossible for it to be stripped off by brush hitting it.
     

  11. Bullthrower338

    Bullthrower338 AH ENABLER AH Legend

    Joined:
    Sep 20, 2014
    Messages:
    3,606
    Video/Photo:
    131
    Likes Received:
    7,196
    Location:
    Houston, Texas
    Member of:
    Life Member Rocky Mountain Elk Foundation, NRA, Huntin' Fool, DSC and Pope and Young Club
    Hunted:
    USA, Mexico, Canada, RSA, Australia NT
    american hunting rifles does fine work on CZ's
     
    Brandon.Gleason and Royal27 like this.

  12. Brandon.Gleason

    Brandon.Gleason AH Veteran

    Joined:
    Oct 27, 2009
    Messages:
    149
    Video/Photo:
    7
    Likes Received:
    91
    Location:
    Shelton, CT
    Member of:
    SCI, DSC, NRA
    I can't second this enough. Wayne's work turned my CZ into a real pleasure of a rifle for a really reasonable price and turn around time.
     

  13. rpgoldsby

    rpgoldsby AH Senior Member

    Joined:
    Aug 25, 2014
    Messages:
    87
    Video/Photo:
    6
    Likes Received:
    83
    I'll third Wayne's work. Did wonders to my CZ.
     

  14. Rob404

    Rob404 AH ENABLER BRONZE SUPPORTER AH Legend

    Joined:
    Jan 6, 2013
    Messages:
    3,274
    Video/Photo:
    31
    Likes Received:
    3,263
    Location:
    Chaska Minnesota
    Member of:
    NRA, Member Minnesota Horse and Hunt,,Caribou Hunt Club
    Hunted:
    Illinois,Wisconsin,Michigan Limpopo Province South Africa
    Iv'e had some quality bolt service done by Baldwin Bolt service, he has a website you can check
     
    Landon Ketchersid likes this.

  15. Artur S

    Artur S AH Member

    Joined:
    Sep 2, 2017
    Messages:
    21
    Video/Photo:
    7
    Likes Received:
    25
    Location:
    Kazakhstan, Astana / Almaty
    Member of:
    Malus Sieversi Foundation; Deutsch Drahthaar Club Kazakhstan
    Hunted:
    Russia, Austria, Switzerland, Germany and of course Kazakhstan
    I have large hands, too and had with my CZs same problem. I had the tiny ball on the 550 mag partly cut off/turned off and threaded to accept a "no-name" aluminium extension i had bought in US. Now i think it looked ugly on a classic rifle.
    I also had the hornady ball but it ripped when put on my regular 550 and then it got lost during some crawling in dense woods.

    I still love the rubber balls on bolt handles, they provide a firm and secure grip when cycling, IF the handle is already long enough. I bought a few different brands again.

    A good tip is to put the ball in hot water for a minute before installing, that makes it for a short period much more flexible and softer.
     
    Last edited: Sep 6, 2017
    gizmo likes this.

  16. gizmo

    gizmo AH ENABLER SPONSOR Since 2015 AH Ambassador

    Joined:
    Jun 26, 2014
    Messages:
    6,193
    Video/Photo:
    1,249
    Likes Received:
    8,348
    Location:
    Texas
    Member of:
    NRA Life Member, DSC Life Member, SCI Life Member, Exotic Wildlife Association, Texas Taxidermy Association Life Member, National Taxidermy Association, TTHA,DUCKS UNLIMITED
    Hunted:
    Romania, South Africa- Kalahari , Eastern Cape, USA, Fished Brazil, Mexico, USA
    You can also put a light film of liquid dish soap, like dawn, on the bolt handle. It will lubricate the handle and the rubber ball will slide on easily. Then when it dries it actually acts as a light glue to keep it in place.
     

  17. gizmo

    gizmo AH ENABLER SPONSOR Since 2015 AH Ambassador

    Joined:
    Jun 26, 2014
    Messages:
    6,193
    Video/Photo:
    1,249
    Likes Received:
    8,348
    Location:
    Texas
    Member of:
    NRA Life Member, DSC Life Member, SCI Life Member, Exotic Wildlife Association, Texas Taxidermy Association Life Member, National Taxidermy Association, TTHA,DUCKS UNLIMITED
    Hunted:
    Romania, South Africa- Kalahari , Eastern Cape, USA, Fished Brazil, Mexico, USA
    Trick works great for putting things like houge grip covers on pistols too.
     

  18. Artur S

    Artur S AH Member

    Joined:
    Sep 2, 2017
    Messages:
    21
    Video/Photo:
    7
    Likes Received:
    25
    Location:
    Kazakhstan, Astana / Almaty
    Member of:
    Malus Sieversi Foundation; Deutsch Drahthaar Club Kazakhstan
    Hunted:
    Russia, Austria, Switzerland, Germany and of course Kazakhstan
    Yes, but the "stretchability" of the material remains the same. I had used plain hair gel to slip it on, but it got cracks/ripped at its base. Warming it up makes it more stretchable.
     

  19. mdwest

    mdwest AH Elite

    Joined:
    Mar 20, 2016
    Messages:
    1,305
    Video/Photo:
    27
    Likes Received:
    1,708
    Location:
    DFW
    Member of:
    DSC Life Member, NRA Life Member
    Hunted:
    USA, South Africa, Argentina, Peru
    a quick THANK YOU to @gizmo for the bolt ball posts..

    Ive been looking for an affordable solution to the horrible bolt handle on my Ruger American compact...

    I love the little gun.. 16" bbl .308.. with an OAL of about 32" after I threw a compact boyds stock on it.. but my big mits just couldnt work the tiny little bolt handle very well..

    Being a cheap little "truck gun" I didnt want to invest a lot of money into modifications, etc.. so I've just lived with the bolt until now..

    Based on the posts above I ordered a couple of bolt balls.. I figured for $4.99 each (price if you buy them direct from Hornady) they were worth taking a chance on..

    They are the PERFECT solution for my problem.. affordable.. easy to install.. comfortable in the palm.. and the bolt is super easy to work now..


    I do hate the big H printed on the ball (Hornady logo).. but that was easy enough to fix.. literally 6-8 seconds on a buffing wheel that I have attached to a bench grinder out the garage and the logo was gone..
     
    gizmo likes this.

  20. gizmo

    gizmo AH ENABLER SPONSOR Since 2015 AH Ambassador

    Joined:
    Jun 26, 2014
    Messages:
    6,193
    Video/Photo:
    1,249
    Likes Received:
    8,348
    Location:
    Texas
    Member of:
    NRA Life Member, DSC Life Member, SCI Life Member, Exotic Wildlife Association, Texas Taxidermy Association Life Member, National Taxidermy Association, TTHA,DUCKS UNLIMITED
    Hunted:
    Romania, South Africa- Kalahari , Eastern Cape, USA, Fished Brazil, Mexico, USA
    Glad it helped you. The H wore off of mine I think after the first 3 range trips with the guns.
     

Share This Page

 
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice