THE ACCURATERELOADING.COM BIG BORE FORUMS

Page 1 2 

Moderators: jeffeosso
Go
New
Find
Notify
Tools
Reply
  
600 OK ?s Login/Join
 
One of Us
posted
After seeing Toms 600 OK ,ive been corrupted into wanting one of these ,ive found a donor 416 Rigby cz550, just have some questions 1.what is the ideal barrel twist for a 600 ok.
i believe Lothar Walther make a 600 barrel so would probably use one of them.
2.where do i get cases for it ? does jamieson make them ?
3.what mods need to be made to the magazine ?
4.does anyone stock reamers for them ?
any other help or advice would be good,2000 fps will be the fastest it will go for me Thanks
 
Posts: 625 | Location: Australia | Registered: 07 April 2006Reply With Quote
One of Us
Picture of CCMDoc
posted Hide Post
I would send PM to

Robgunbuilder (Rob Garnick - the inventor of the round)

and

Bitterroot (Wayne Jacobson of American Hunting Rifles) who has built quite a few of these behemoths.

I am sure that they will be able to point you in the right direction.

Good luck,
Paul


NRA Lifer; DSC Lifer; SCI member; DRSS; AR member since November 9 2003

Don't Save the best for last, the smile for later or the "Thanks" for tomorow
 
Posts: 3465 | Location: In the Shadow of Griffin&Howe | Registered: 24 November 2007Reply With Quote
One of Us
posted Hide Post
Thankyou Doc
 
Posts: 625 | Location: Australia | Registered: 07 April 2006Reply With Quote
one of us
posted Hide Post
I think most of us used Pac-Nor for our barrels at least thats what Rob, I and most of the folks early on used.

I have a couple .620 barrels here and would be willing to part with one. PM me if you're interested. It might save you a few bucks and a few months, unless one of the manufactures happens to have one in stock. PM me if you're interested.

The origional cases came from Hornerber but there may be others making them now. Get ahold of Neil @ custom brass and bullets, he goes by RNS on the bords here he may have some in stock.

You will deffinately need some mag work and some rail modification. If you are not experenced doing that work send it out. American Hunting Rifles (AHR) deffinately has the most experence building the 600. There are probably a few reamers out there but not many. Rob may be able to point you in the right direction. I would bet that AHR has one.

CCMDoc has it right Rob is who can give you the most help. He's one of the good guys and has always been helpfull to me and many others.

Good luck with your project. The 600 is a great creation it can be mild or wild. It's all up to you.
 
Posts: 855 | Location: Belgrade, Montana | Registered: 06 October 2000Reply With Quote
One of Us
Picture of CCMDoc
posted Hide Post
quote:
Originally posted by fritz454:
I think most of us used Pac-Nor for our barrels at least thats what Rob, I and most of the folks early on used.

I have a couple .620 barrels here and would be willing to part with one. PM me if you're interested. It might save you a few bucks and a few months, unless one of the manufactures happens to have one in stock. PM me if you're interested.

The origional cases came from Hornerber but there may be others making them now. Get ahold of Neil @ custom brass and bullets, he goes by RNS on the bords here he may have some in stock.

You will deffinately need some mag work and some rail modification. If you are not experenced doing that work send it out. American Hunting Rifles (AHR) deffinately has the most experence building the 600. There are probably a few reamers out there but not many. Rob may be able to point you in the right direction. I would bet that AHR has one.

CCMDoc has it right Rob is who can give you the most help. He's one of the good guys and has always been helpfull to me and many others.

Good luck with your project. The 600 is a great creation it can be mild or wild. It's all up to you.


fritz454 is being modest as far as his own knowledge and input into bringing the 600OK to fruition. If you don't want that barrel, I'll take it.

My brass is Jamison and I got it through AHR. I believe that is what Neil carries as well.

Good luck - Rob's brainchild has taken off and has a life of it's own. We have all enjoyed the fruits of his labor. As fritz454 says - he is one of the good guys - I speak from persoanl experience with Rob an his better half.

Paul


NRA Lifer; DSC Lifer; SCI member; DRSS; AR member since November 9 2003

Don't Save the best for last, the smile for later or the "Thanks" for tomorow
 
Posts: 3465 | Location: In the Shadow of Griffin&Howe | Registered: 24 November 2007Reply With Quote
One of Us
posted Hide Post
I concur with the above postings regarding Rob and Wayne at AHR. Both of them are top notch individuals and I value their knowledge and wisdom regarding large bore shooting.

Wayne builds superb rifles at great value and workmanship with a short build time as compared to many other builders. He built a 375 H&H on a Granite Mountain action in a six month time period. (Took him 4 months to get the action from GMA)

Met Rob and went and shot his 600OK and 12 GAFH in Vegas this last summer. Hoping to see him over the Thanksgiving holidays.

There seems to be a lot of opinions (And lots of BS) in the gun world, and on the AR forums.

These guys are knowledgable and I will be planning to have Wayne build a 600OK as well as a Alaskan bear rifle in the near future.
 
Posts: 2180 | Location: Rancho Cucamonga, Ca. | Registered: 20 February 2008Reply With Quote
one of us
Picture of Robgunbuilder
posted Hide Post
Tankhunter- Well a .600Ok would certainly help you live up to the full potential of your AR name! The .600Ok flat performs and my first one was in fact built on a CZ550 .416 Rigby donor action. I also suggest you simply send cash to AHR and wait patiently till you too get a surprise pkg in the mail. Everybody says they will only shoot 2000fps loads but you know deep in your heart that just isnt so. Welcome to the bruised but happy group of .600OK owners.-Rob


Never underestimate the power of stupid people in large numbers to do incredibly stupid things- AH (1941)- Harry Reid (aka Smeagle) 2012
Nothing Up my sleeves but never without a plan and never ever without a surprise!
 
Posts: 6314 | Location: Las Vegas,NV | Registered: 10 January 2001Reply With Quote
One of Us
Picture of CCMDoc
posted Hide Post
quote:
Originally posted by Robgunbuilder:
Everybody says they will only shoot 2000fps loads but you know deep in your heart that just isnt so.-Rob


2,435fps with 900gr
2,675fps with your 730 grainer beer


NRA Lifer; DSC Lifer; SCI member; DRSS; AR member since November 9 2003

Don't Save the best for last, the smile for later or the "Thanks" for tomorow
 
Posts: 3465 | Location: In the Shadow of Griffin&Howe | Registered: 24 November 2007Reply With Quote
One of Us
Picture of ShortandFat
posted Hide Post
quote:
Originally posted by Robgunbuilder:
Tankhunter- Well a .600Ok would certainly help you live up to the full potential of your AR name! The .600Ok flat performs and my first one was in fact built on a CZ550 .416 Rigby donor action. I also suggest you simply send cash to AHR and wait patiently till you too get a surprise pkg in the mail. Everybody says they will only shoot 2000fps loads but you know deep in your heart that just isnt so. Welcome to the bruised but happy group of .600OK owners.-Rob



hey Rob, do you know if anybody has comissioned one in Australia ?

We really haven't got access to large PH actions here, but if you can squeeze on into a CZ then there is a chance.....

I don't know about my end, I'd need to get a letter and case drawings off to Australian Firearms registry for approval, but what do you think the chances of getting a chambered barrel out here are ......

regards
S&F
 
Posts: 463 | Location: Victoria, Australia | Registered: 26 September 2007Reply With Quote
one of us
Picture of Robgunbuilder
posted Hide Post
shortandfat.- you buy the barrel and I'll short chamber it for you. Dont know why it would be a problem in OZ. I have the paperwork from the BATF in the US demonstrating its a sporting cartridge not a DD. You can build a .600OK on a Enfield P1917 with 1914 bolt, a CZ 602 or CZ550 etc.-Rob


Never underestimate the power of stupid people in large numbers to do incredibly stupid things- AH (1941)- Harry Reid (aka Smeagle) 2012
Nothing Up my sleeves but never without a plan and never ever without a surprise!
 
Posts: 6314 | Location: Las Vegas,NV | Registered: 10 January 2001Reply With Quote
One of Us
Picture of ShortandFat
posted Hide Post
quote:
Originally posted by Robgunbuilder:
shortandfat.- you buy the barrel and I'll short chamber it for you. Dont know why it would be a problem in OZ. I have the paperwork from the BATF in the US demonstrating its a sporting cartridge not a DD. You can build a .600OK on a Enfield P1917 with 1914 bolt, a CZ 602 or CZ550 etc.-Rob



Rob thankyou, a most generous offer.

Today I managed to locate i believe an old Winchester 1917, not an Enfield or is it the same thing. Does that sound right.

I have sent an email to Penny at PACNOR to see if she is happy for me to get a barrel made and contoured sent to you.

Pacnor don't send to individual buyers in Australia anymore, things have got tuff at your end, they require an additional $300 or $400 export permit and documentation for orders over $100 however person to person is still OK as far as I know.

I still need to check with Australian Firearm Registry to see if they are happy with the .620 cal, seems anything over .500 scares people today even here.

Plan is to build it as a single shot with open sights. So no action, magazine or floor plate work initially just open the bolt face. Muzzle break added. Heavy piece of timber, not beautiful but practical, wrist pin, cross bolted and second recoil lug added and bedded.

Take it to a few Big bore shoots and let people get smashed by it while I film it. load one shot into it like Saeed's 577 Trex and let people "feel the power".....so it only needs to be a single shot.

Then at a later stage, when the wallet has a bit more money in it...open the mag well on the stock up and the action, new mag box and feed work done.

Firstly though.......I need to find out if I can get a chambered barrel, dies and cases into Australia. I did with jeffe's 500 AccRel

regards
Joe aka S&F
 
Posts: 463 | Location: Victoria, Australia | Registered: 26 September 2007Reply With Quote
one of us
posted Hide Post
quote:
Originally posted by ShortandFat:
Pacnor don't send to individual buyers in Australia anymore, things have got tuff at your end, they require an additional $300 or $400 export permit and documentation for orders over $100 however person to person is still OK as far as I know.


More like 'export tax'. Mad

Rob,
Explain why a P14 bolt is required? Bolt diameter M17/P14 is exactly the same, only difference is the shape of the left side bolt lug. When the bolt face is opened ... does the M17 bolt give less support to the case head or something?
Cheers...
Con
 
Posts: 2198 | Location: Australia | Registered: 24 August 2001Reply With Quote
one of us
posted Hide Post
quote:
Originally posted by Con:
quote:
Originally posted by ShortandFat:
Pacnor don't send to individual buyers in Australia anymore, things have got tuff at your end, they require an additional $300 or $400 export permit and documentation for orders over $100 however person to person is still OK as far as I know.


More like 'export tax'. Mad

Rob,
Explain why a P14 bolt is required? Bolt diameter M17/P14 is exactly the same, only difference is the shape of the left side bolt lug which is tapered in the M17 but radiused and 'heavier' in the P14. When the bolt face is opened ... does the M17 bolt give less support to the case head or something?
Cheers...
Con
 
Posts: 2198 | Location: Australia | Registered: 24 August 2001Reply With Quote
Moderator
Picture of jeffeosso
posted Hide Post
its easier to hold a huge round on the 14bolt, as you are going to actually be using the EARS ... just like a trex


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
Posts: 40081 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
Moderator
Picture of jeffeosso
posted Hide Post
winchester model 1917 is an enfield pattern rifle


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
Posts: 40081 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
one of us
posted Hide Post
quote:
Originally posted by jeffeosso:
its easier to hold a huge round on the 14bolt, as you are going to actually be using the EARS ...


Use smaller words ... I must be having a blonde day! What are you refering to as EARS. The left lug?
Cheers...
Con
 
Posts: 2198 | Location: Australia | Registered: 24 August 2001Reply With Quote
Moderator
Picture of jeffeosso
posted Hide Post
the lugs on the 14 bolt can be opened "wider (no, not really, but) than a 17 bolt, and can hold the casehead better ... <i think>


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
 
Posts: 40081 | Location: Conroe, TX | Registered: 01 June 2002Reply With Quote
one of us
posted Hide Post
Okay ... I think I understand ... but for everyone's education I'll drop off a P14 and M17 bolt to S&F today ... he can post photos of them side by side and you guys can explain how it gives better case head support.

This question has intrigued me for quite awhile.
Cheers...
Con
 
Posts: 2198 | Location: Australia | Registered: 24 August 2001Reply With Quote
One of Us
Picture of ShortandFat
posted Hide Post
OK guys

Here's a picture of both the 17 & 14 bolts



Now I think the reason you guys say the 14 bolt is better is because the right hand lug on the 17 Bolt tapers off way too much and is smaller

Am I correct there ?

Outside diameter of both bolts is approx .690 so there is room for the 600 OK case

regards
S&F
 
Posts: 463 | Location: Victoria, Australia | Registered: 26 September 2007Reply With Quote
One of Us
posted Hide Post
Yes, the extra steel on the right lug is why the P14 bolts are used for big builds.

One question I have and hope someone here will post the answer; why is the P14 extractor preferred of the P17?
 
Posts: 528 | Location: Baltimore, MD | Registered: 21 July 2008Reply With Quote
one of us
Picture of Robgunbuilder
posted Hide Post
The picture shows it all. The P14 bolt will have enough metal on it after its opened up so that the case head has something to hold it in place against the extractor opposite it. Make sense now? I learned this little piece of info the hard way about 20 yrs ago.
I found its a little easier to reshape the P14 extractor than the 1917 for a .600OK. Thats another part of the .600Ok build thats actually pretty important.-Rob


Never underestimate the power of stupid people in large numbers to do incredibly stupid things- AH (1941)- Harry Reid (aka Smeagle) 2012
Nothing Up my sleeves but never without a plan and never ever without a surprise!
 
Posts: 6314 | Location: Las Vegas,NV | Registered: 10 January 2001Reply With Quote
one of us
posted Hide Post
quote:
Originally posted by Robgunbuilder:
The picture shows it all. The P14 bolt will have enough metal on it after its opened up so that the case head has something to hold it in place against the extractor opposite it that the case head has something to hold it in place against the extractor opposite it. Make sense now? I learned this little piece of info the hard way about 20 yrs ago.
I found its a little easier to reshape the P14 extractor than the 1917 for a .600OK. Thats another part of the .600Ok build thats actually pretty important.-Rob


Rob,
That's almost a DOH! moment. I get it now and that makes perfect sense!
Cheers...
Con
 
Posts: 2198 | Location: Australia | Registered: 24 August 2001Reply With Quote
One of Us
posted Hide Post
I think i will just take Robs advice and get AHR to make me one ,just a matter of finding out whether they will let it into Australia .Id love to see how a 600 ok performs on scrub bulls buffalo etc
 
Posts: 625 | Location: Australia | Registered: 07 April 2006Reply With Quote
One of Us
posted Hide Post
The 600 OK is a great cartridge. The guns are super to shoot. How the hell did I end up with 3 of them????
 
Posts: 929 | Location: southern illinois | Registered: 29 July 2006Reply With Quote
One of Us
posted Hide Post
Bigdoggy,

Three is an odd number. I think four sounds better.
Just wait, you will have Tom's latest one before long. HA!!
 
Posts: 1253 | Location: Montana | Registered: 18 February 2007Reply With Quote
One of Us
posted Hide Post
Wayne, Beware of someone who casts his lead practice bullets in empty beer cans. Can you say "one bore"??? Bigdoggy has some serious penis issues!!!!!!!!!!!!!!!
 
Posts: 20175 | Location: Very NW NJ up in the Mountains | Registered: 14 June 2009Reply With Quote
One of Us
posted Hide Post
Hey Jon, my penis is just fine, but thanks for thinking of him. Ha Ha Ha
 
Posts: 929 | Location: southern illinois | Registered: 29 July 2006Reply With Quote
One of Us
posted Hide Post
Jon, better be careful, don't you own a 600 and a 700 too ????
 
Posts: 929 | Location: southern illinois | Registered: 29 July 2006Reply With Quote
One of Us
Picture of ShortandFat
posted Hide Post
Was informed today, my approval to import a 600 OK barrel was accepted

So getting a 600 OK in Australia, is almost a reality

Rob, Fritz454 will be sending one of his barrels to you for chambering

Gents

I'm going to need some advise here.

Dies - 600 OK, who has them

Cases/Brass - I have a permit for 25 Cases. Jeffe tells me his buddy Neil can supply these

Head space gauge - I only need a GO gauge or maybe an old case with the head and belt only

Thanx in advance gents

Here's the action I'm going to use.

It's an OLD Remington M17, the bolt has been changed over to a P14 with the M17 extractor.

It's had a fair bit of work done to it already, I do have the safety it's just not on for the photo









regards
Joe aka S*F
 
Posts: 463 | Location: Victoria, Australia | Registered: 26 September 2007Reply With Quote
One of Us
Picture of PWS
posted Hide Post
G'Day S&F,

Great news on the permit and barrel!!!

I got my brass through AHR and bought dies directly from CH4D http://www.ch4d.com/.

This is beginning to sound like a broken record but Rob did a FANTASTIC job in designing the .600 Overkill and I heartily recommend it for anyone interested in a cartridge that will perform mildly to INSANE levels of power.

No doubt you've perused this thread:

http://forums.accuratereloadin...871052201#7871052201

I found it pretty straight forward to shoehorn the Big 6 into an Enfield.

One change I've done since the post above is that the mag box is now welded to the bottom metal. With the box loose, it was wacking the bottom metal hard enough to cause the floorplate to eject. Eventually it broke the rear latch. Now that it's welded in place, the floorplate has not "bombs away" since.

It looks like your action window has been opened to the rear. Good. The standard opening is a little too short for ease of filling the mag and although good at the bench (no lost brass) can interfere with ejection.

Good luck on your project!
 
Posts: 1143 | Location: Kodiak | Registered: 01 February 2005Reply With Quote
One of Us
Picture of PWS
posted Hide Post
I forgot to add - just grind the original follower flat. In some thread, Jeffe said he just used a belt sander and that worked for me.

The plastic U-grooved follower I made wasn't necessary and actually limited the box to one down. It fed slick but so does a plain flat follower.
 
Posts: 1143 | Location: Kodiak | Registered: 01 February 2005Reply With Quote
one of us
Picture of Robgunbuilder
posted Hide Post
S&F- I have one of the original .600Ok barrels here thats long chambered for the .600OK and threaded for a CZ550 or 602 action. You sure you want to do an Enfield? They require square threads and a extractor cut. Thats alot of tricky work. Your miles ahead buying my barrel and trading the Enfield in on a CZ550 or 602. -Rob


Never underestimate the power of stupid people in large numbers to do incredibly stupid things- AH (1941)- Harry Reid (aka Smeagle) 2012
Nothing Up my sleeves but never without a plan and never ever without a surprise!
 
Posts: 6314 | Location: Las Vegas,NV | Registered: 10 January 2001Reply With Quote
One of Us
Picture of ShortandFat
posted Hide Post
Damn Rob, now you have thrown a spanner into the cogs

That was my original plan......

But

Actually Rob, I'm committed now, the enfield it will have to be.

Unless I can find a cheap CZ in the next 2 or 3 days

I picked up the action as you see with a little bit of work done to it already for $250 Australian, thats about $220 US, So it hasn't cost me a lot YET

I told Fritz454 I'd take his barrel, but it will need profiling......and trimming, it's huge

I've had a quick meassage from Jeffe and he might be able to do me a favour on the stock, if I'm a nice guy..

Thanks anyway Rob
 
Posts: 463 | Location: Victoria, Australia | Registered: 26 September 2007Reply With Quote
one of us
posted Hide Post
quote:
Originally posted by ShortandFat:
I picked up the action as you see with a little bit of work done to it already for $250 Australian, thats about $220 US, So it hasn't cost me a lot YET


So are you paying me soon? animal

Cheers...
Con
 
Posts: 2198 | Location: Australia | Registered: 24 August 2001Reply With Quote
one of us
posted Hide Post
SaF,

Rob's way would certainly be the easiest and CZ are not too expensive and have been prooven performers for the 600 OK.

If you want to go a different way there will be no hard feeling on my end. The goal is to get as many people shoohting this wonderful creation as possible.

So whatever you decide is fine with me.
 
Posts: 855 | Location: Belgrade, Montana | Registered: 06 October 2000Reply With Quote
one of us
posted Hide Post
I can't speak for S&F ... but we have both mulled this over.

Over here ... a CZ in 416Rigby is a minimum of $1300 (S/H) or $1500 new. The Enfield at $250 can have $1000 spent on it before it's even on par with the CZ cost wise. A beater stock for the Enfield is already here ... a new stock will be maybe another few hundred to get ready.

If he goes the CZ route ... it'll be expensive because I'll talk him into a very nice complete rifle, where the Enfield at this stage is a 'shits and giggles' rifle which will be singleshot at first and then altered later for a single stack magazine.

Either way, it's his call and we've both gone from one side to the other, arguing the merits of both. Mind you ... I reckon that's the best part about a bigbore build.
Cheers...
Con
PS: I think I volunteered as 'crash test dummy' for getting the open sights regulated. hilbily
 
Posts: 2198 | Location: Australia | Registered: 24 August 2001Reply With Quote
one of us
posted Hide Post
Con,

I freely admit that I have almost no knowledge of the Ausltailan gun market. My point was to let SAF know that should he change his mind and decide to go a different route I would harbor no ill will to him for changing his mind to I deal he confirmed to me via email.

No matter what directon he decides to take I will welcome him to the 600 OK owners club and help in any way I can.
 
Posts: 855 | Location: Belgrade, Montana | Registered: 06 October 2000Reply With Quote
one of us
posted Hide Post
fritz,
Understand perfectly and I wasn't taking a shot at you.

Prices here went crazy when the AUD collapsed, we're now back at AUD 90c to the US $1 and are awaiting prices to drop. Mind you the CZ's in my opnion where the least affected ... new Ruger's went from $780 to $1200. Mad

Locally ... you want to see crazy ... ex-mil stuff (SMLE's in particular) is going through the roof!

http://usedguns.com.au/used_gu...new.html#whats%20new
Cheers...
Con
 
Posts: 2198 | Location: Australia | Registered: 24 August 2001Reply With Quote
One of Us
posted Hide Post
quote:
Originally posted by Con:
So are you paying me soon? animal

Cheers...
Con


Nooooo, make him sweat it out S&F stir.

Paz


458AR & 500AR owner (yes it is done dancing )
12GFH in the pipeline(but not a real one, just a "mini one"!!
The single shot on fine and beautiful lines built by a master craftsman is indeed a gentleman's piece...
Colonel Townsend Whelen
 
Posts: 105 | Location: N.S.W. Australia | Registered: 05 August 2008Reply With Quote
One of Us
posted Hide Post
I would not want to be sitting on a big bank account filled with any currency these days. Fortunately, thats never been a problem for me. If it were, I would dump all my cash into stuff, anything real. I heared the $AU was strong, that should favor imports in austraila, guess one cannot believe all the hear on TV news.

Con, If you had an ounce of gold, you could buy that Ruger.
 
Posts: 1226 | Location: New England  | Registered: 19 February 2009Reply With Quote
  Powered by Social Strata Page 1 2  
 


Copyright December 1997-2023 Accuratereloading.com


Visit our on-line store for AR Memorabilia