If I buy a Brno CZ550 rifle in .375H/H or .458WM ... would it be possible for a gunsmith to build it to a .600 OK???
Or is it possible to build my .460 mark v rifle to .600 Ok??
Thanks!!

The 600 OK was designed to fit in the cz550. Stay away from the Mark V for this cartridge.

Then it is possible to build a CZ550 to the .600 Ok right?
What do you have to do on a Brno CZ 550 rifle in .375 H/H to make a .600 OK of it??? and what would it cost. Here in sweden a new CZ cost just around 10000 kronor.

Overkill, not only is it possible to build a 600 OK on a cz550, that is exactly what the cartridge designer intended. A 600 OK round ALMOST feeds from an unmodified cz550 in 416 rigby. But, you need to widen the rails a tad and mess with the ramp a bit. Of course you also have to open the boltface and re-fit the extractor.

Robgunbuilder is the designeer of this cartridge, so I suggest you email him to get details of how to the conversion, and possibly some pictures, as he has done it successfully. This is a difficult project and you should only select a gunsmith who specializes in big bore conversions to do it. If your gunsmith adjusts the rails or ramp incorrectly, your rifle will not feed.

You will need a pre-chambered barrel. Pac-Nor is the only company that can provide it. Then as 500grs says, you need a really good gunsmith. I'd figure on spending the equivalent of 3-4 thousand dollars US.-Rob

Overkill,

The CZ550 seems to be the way to go. I would more than likely start out with a McMillan glass stock and get wood later on though. I think actual action work for a gunsmith would be minimal.

ASS_CLOWN

Send me the rifle parts, reloading dies, brass, bullets, and I will send you back the rifle, sighted in and "good to go"!

ASS_CLOWN

Dan,

They aren't empty words, unless your meaning is that your original comment was empty. Not too aweful difficult. By the way, you want a staggered or inline magazine?

ASS_CLOWN

The conversion is not trivial but is straight-foreward and can be done by any good gunsmith familiiar with DGR's. This is not a project for a ASS-CLOWN!The Cz550 action needs to have the ejection port enlarged considerably and the upper portion of the rear bridge opened for clearance on ejection. The ejector must be modified, The rails milled out then fitted by trial and error by hand. The ramp must also be milled very carefully as to not overly weaken the lower locking lug and then reshaped for the .600 OK bullet nose shape. The bolt has to be opened to .645, To do this the bolt face must be annealed, then cut back about .003 and then re-case hardened. The remaining bottom of the bolt rim needs to be cut to allow the case head to slide up under the extractor hook while maintaining just the proper amount of tension. Of couse the extractor has to be properly re-shaped. Finally, the follower needs to be machined to a different profile, the spring changed and guide rails added to the mag box. The box itself needs to be modified(widenend) to more closely match the cartridge diameter and in addition the bottom of the action must be re-machined to match the new mag box shape. While all this is being done, one should change the CZ trigger and a add M70 Like three position safety. I have a set of complete directions available that I will share with those who are actually building a .600OK. I should add that the front of the CZ action ring still needs to be Trued ,however, I do not typically lap the bolt lugs since this is a short range gun and they appear to be case hardened( not interested in cutting through the case). To date, I've seen no evidence of bolt lug or receiver lug set-back after firing heavy loadsexceeding what I believe to be about 57Kpsi and I've looked.-Rob

Robert,

Nice list. You did leave out one this, by the way. The bottom metal must also be opened up just like the receiver was to accept your new wider magazine box. With a properly dimensioned box, I suspect we could easily fit three down.

Of course, American Hunting Rifles did not fabricate a new magazine box, nor machine out the action/bottom metal, did they.

Still a straight-forward, easy conversion. I prefer to hard turn bolt faces, by the way. If you are using one of the cheapy imported lathes I can understand your reluctance to try hard turning, YOU CAN'T!

By the way, are you using a wood stock? I would be very concerned with a sudden catastrophic failure of a wood stock with 57,000 psi loads in your 600 OK! Of course I still don't think you have shot any 57 ksi loads yet, at least the loads you have publish here at AR aren't anywhere near the 57 ksi level (although I am quite certain that the recoil of the loads you have published is quite considerable). Aluminum bedding block (a real big one) and a composite skin to fit the shooter would be my choice.

Of course it is more involved than screwing a new barrel into a Savage 110.

Personally, and just to induce some actual difficulty to the project, I would opt for a well executed (read cosmetically appealing) single stack magazine along the lines of a Westley Richards. This rifle/cartridge combination simply screams single stack magazine ala WR, at least to me.

ASS_CLOWN

Hey Ass-wipe...I mean Ass-Clown. AHR did in fact make a new mag box. I know this for fact since the first one is in my 600 OK. Try checking your "Facts" before proving your screen name to be accurate.

Since "we could easily fit three down" and an "Aluminum bedding block (a real big one) and a composite skin to fit the shooter would be my choice". Why don't you dazzle us all with your prowess and build one instead of knocking those that actually put their money, time and effort on the line. Then you could use some of your loads and we'd be rid of you forever under whatever handle.

Why don't you get off your soapbox and shut up you may learn something.

John,
you gotta have a little patience with shastain azwipe... after all, when faced with the challenge, he is beggin poverty, as he wants someone to send him all the tools and materials to make a 600. You know, a waffle house waitress salary (she make manager yet?) just can't let him cough up 500 here and there for a new rifle.

John, remember, he's so enamored with Ed's 500 AHR rifles that he posted Ed's rifle as his "modifed mod70 in 450 watts" that was really a 500 AHR.

I think i figured out why he never posts he guns... he's afraid of loosing his only internet access at the mission.

So, John (grin) we really shouldnt pick on him due to his poverty... it's just not nice to notice... We all know he's ethicaly bankrupt, and couldn't tell the turth as to if it was daylight.. I just hadn't realized he was so poor as to start begging for people to send him parts for a gun... He can't even spend a penny to prove his own point.

We really should have a little pity for him.. he lives in such an artifically created world, where he actually believes his own BS...

One day, he'll either be exported back to his native germany.. or the ass_clown circus will come back and collect their freak

You'ld think the village already misses it's idiot

jeffe

Bravo Jeffe,

I have no problem with him being short of cash just short of common sense. Then again he could be logging on from the State Psychiatric ward. Actually that would explain the multiple personalities.
I do wish I knew which village he was from so I could tell them their idiot is loose and causing mayhem and being a general PITA.

fritz454,

Interesting, someone isn't telling the truth. Hint: not me I don't own a 600 OK, don't even want one.

I thought you were working on a Schuler single stack design, and NOT utilizing AHR for your rifle. Careful now, I have already done the searching on this site, better go edit.

Now who exactly is the ass wipe? Not I, I am <drum roll> the

ASS_CLOWN

There you go again jeffeosso, bringing up just how wealthy you and your buddies are! Actually, I find it pretty pathetic, you behaviour that is.

ASS_CLOWN

Sorry Ass_Clown, AHR has been doing my 600 OK since the beginning, about 18 months now. NO secret about it either. I have done some work on altering a mag box on the CZ but have only prototyped it thus far. Your grasp on reality is scary. Now take your lithium and play nice with the other children.

fritz,

I was playing nice, the attacked me, you did to. I suggest that it is YOU who need the lithium.

Why is it taking so long? 18 months????? George has his rifle almost completed, and in less than, what, 3 months.

AHR takes about as long as Robgunbuilder, I wonder if there is a connection????

Gotta go, answer the questions though if you don't mind. I appreciate it.

ASS_CLOWN

John,
man, we are friends and all.. but PLEASE don't suggest a troll be left alone with children... <shudder>

jeffe

Ass-Clown- I can't tell you how happy I am to have finally gotten through to you! By adopting your new Moniker we are able to dispense with all that artificial verneer and just get down to brass tacks or knuckles.It's good to see your begining to face reality and accepting yourself for who you really are! Your taking the first of three big steps! Way To Go!-Rob

ASS CLOWN - Don't let RobGunBuilder keep mopping the floor with you and making a fool out of you. Post some good photos of yourself firing and holding all the 600 OK's you've built.

I don't understand why everyone on the forums can't just take your word for it that you're the greatest hunter, gunsmith, metalergist, engineer, machinest, mathametician and self-dilusional pathological liar alive.

And did I mention you're the greatest comedian on AR. You are so pathetically stupid that you just crack me up!

Man, what can be dumber than someone so dumb he thinks he's smart?

Wow,
Pecos, seems you found the piggy brother to that dog pic i saw.. any chance they were both found near a waffle house?

jeffe

Robert,

Quote:

---

I can't tell you how happy I am to have finally gotten through to you! By adopting your new Moniker we are able to dispense with all that artificial verneer and just get down to brass tacks or knuckles.It's good to see your begining to face reality and accepting yourself for who you really are!

---

Words cannot begin to explain the joy I feel after reading your last post.

If you wouldn't mind explaining what the next two steps I must take are I would be eternally grateful.

ASS_CLOWN

The more important question, jeffeosso, is whether or not these two (the dog and pig) were seen down river. Well, Pecos, were the dog and pig seen down river or not?

ASS_CLOWN

I notice the clown skipped away from the subject of HIS 600 OK.

I know you have a few of them, Scott, because I remember last year when you were talking shit about how you had ordered this and that and were going to build one. Hahahahaha

Funny how you're always GOING TO BUILD something, but somehow it never seems to happen. Why is that? Does it have anything to do with you being a pathological liar?

Pecos, old boy, they say the mind is the first to go, I believe you may be going. I NEVER said I had or was making a 600 OK. Robert would never loan me the chamber reamers, for one thing!

Scotty boy and I were working on a 585 Nyati. By the way, I ain't Scotty boy.

So tell me, that dog and pig, they from down river or what?

ASS_CLOWN

ASS CLOWN AXEL,

So, Turd Boy, tell us all about the 585 Nyati you and Queer Bait built. You posted on the reloading board looking for a load for it. Being the rocket scientist/brain surgeon that you are, I'm wondering why a person of your intelligence would need to ask such a question. Put simply, you really didn't need to ask the question, cause you don't own a 585 Nyati and you're not very intelligent either. Put simply again, you're a lying sack of shit.

craigster,

You seem to be very interested in homosexual activity, are you cruisin' for a peice of arse?

If I must explain to you the reason for trying to acquire a known accurate load, for a 585 Nyati, operating in the 2160 - 2280 fps range, it is most likely a complete waste of time and effort. Why you ask, because you are very obviously a complete imbecile!

However, I will attempt to explain it to you. Since most 585 Nyati are build on the same actions (this case a CZ550) and the same barrels (this case PacNor using a more or less standardized profile for this caliber) they will have similar, if not identical, barreled action harmonics. So if one acquires a load which works well in one of these rifles, there is a reasonably great liklihood it will work satisfactorily in other rifles of similar manufacture. Therefore, saving one considerable expense and some time. Bullets for this caliber are somewhat more costy than 0.224 or 0.308 diameter projectiles.

If you comprehend this elementary concept, I commend you! If not, then I guess the logical questions is: (since I took the time to attempt to explain the concept to you anyway, knowing full well it would most likely remain far over your head) Who is the bigger imbecile, the imbecile or the imbecile that attempts to educate the imbecile?

Sorry, but is jalepeno elk burger grilling time (besides I am beginning to drool on the keyboard) MMMMMMMmmmmmmm!

ASS_CLOWN

Originally posted by Ass_Clot

Quote:

---

.. interested in homosexual activity,...

cruisin' for a peice of arse...

... I am beginning to drool ..

MMMMMMMmmmmmmm!



ASS_Clot

---

I think i decyphered what Scat/Axehole/judidiot has been saying all along...



jeffe



for those interested.. the ellipise are correctly utilized... i added no words to it's "mouth"

Ass-Clown You're really making progress and thats great! I'm proud of you! I see now that I and others have attacked you for inappropriate reasons! We obviously are wrong and you are doing all you can to enlighten us! Now step Two has got to take courage! All you have to do is post a digital picture of yourself holding a Rifle you've built yourself! It doesn't have to be beautiful or elegant, It just has to be yours. This will end a great deal of the redicule and lack of trust everyone has for you. A simple honest photo (YOU and a GUN you made yourself) will go far to restore your credibility! Step three will be harder but your almost there! This is good advice-Take it, It might change your life forever!-Rob

Rob, your challenge will be no trouble at all for the Ass Clown, since he has built several of every big bore rifle from the .375HH on up. And he did it all with only a cobbler's hammer and a rusty file, working from his vast memory of the specifications. If you don't believe me, ask him.

Robert,

Thank you for enlightening me to the next step. I am troubled though as to how to continue. I cannot figure out how to get a digital picture of myself holding a gun! My arm isn't long enough to hold the camera far enough away to get a picture which includes both the gun and myself.

As you are well aware, I am a pathetic loser of a male and have not friends. So here is the problem. Since I have no friends to help me out, I would need to rely upon the kindness of a stranger. My problem is that if I ask a stranger to take my picture while I am holding a gun I am afraid they would think me a psycho and call the police! That would quickly lead to me being arrested and jailed, I fear. What am I to do? Any guidance you can provide is greatly appreciated.

ASS_CLOWN

ASS CLOWN - I don't doubt the "no friends" part of your post for a second AC. Certainly you have the social skills of a bar of cheap soap.

But to answer your question. There are two ways you could achieve the photo Rob has requested. Apparently your knowledge of digital cameras and cameras in general is about as threadbare and limited as your knowledge of firearms.

Almost every camera built the last 20 years has a provision built in for a TIMED shot...wherein you can set and focus the camera and turn it loose and in X number of seconds the camera will take the photo where you aimed it....thus allowing you time to sit down and pose with your non-existant rifle.

Or failing this, just ask your equally stupid wife to take the photo. Make sure you remove the lens cap before giving her the camera and it may take her several attempts to achieve a useable photo. But fortunately with a digital camera, film is cheap.

Hope this helps with your baffling problem. P45

I have looked in the owners manual and all over the camera but my digital camera just doesn't seem to have a time delay feature.

Perhaps if I just get as good a picture as I can, trying to get as much of myself and the rifle in the picture?

ASS_CLOWN

Won't your idiot wife ~judy help you, Scott?

I guess if all else fails you could just go stand in front of your vanity mirror and take a picture of your image. Or are Ass Clowns like vampires and don't have a reflection?

I understand now, Scott, how you could hunt all over Africa and kill all those Cape Buffalo and not have a single picture of yourself and the buffalo.



It must be hell being an outcast.

What are we taking pictures of? Sometimes I have used the bathroom mirror and took one without a flash.