Here's an update.
Link to the first post, in case you didn't see it the first time. My Big Bore Project, .600 OverKill on a CZ550

The stock is inletted, the bolt face is opened, the rails are ready(new mag box is NOT required), the quarter rib is profiled to the barrel. The action feeds RN Woodleigh's just fine!


Notice the all important stock making juice!

If any of you guys like dark beer, I highly recomend Spaten Optimator. VERY good beer.


The barreled action needs to be inleted about 3/16" deeper in this photo.


Black marker shows the approximate finished height of the rib.





I'm waiting on a new 3 position safety from Jim Wisner, hopefully it will be here soon. I also ordered a new trigger from him. It's the regular trigger(no set trigger) that sits farther back in the trigger guard. That will take a few more weeks, he has to finish the run of shrouds and safety parts first.

The bolt still needs to be filled and straightened. I have to decide whos front ramp to use. I haven't decided if I want a cheekpiece on the stock. What do you think, naked or cheekpiece?

I have dies, shell holder, adapter for dies, brass, and bullets. I can't wait to make this thing go BANG!

Nice work. A shadow-line cheekpeice would look nice, but first answer what is more comfortable for your shooting.

George
Looks great wish I was that far along. You doing all the work?
Im hoping to Send out the barrel and action next next month. After the two are mated up ill start getting serious. Hope to be shooting some 600Ok rounds by the end of the summer.
Dean

Smallfry,
All of my rifles have cheekpieces, but none of them will have this much recoil.

Tonto,
I'm not doing any of the work. I have a very good friend who is a gunsmith. I know cars, not guns. If I was doing the work it would not function and would look terrible when done.

HI,


Looks great and so does the beer,Kev

George,
Just curious, what is the target weight of your 600 Ok-CZ 550? Also am having one built, but after talking with Robgunbuilder, I upped the weight to 14-15 lbs. I wanted to be able to hunt with it and didn't want it to be a one shot rifle-not being able to quickly to get back on target Now I will probably need a wheelbarrow to hunt with

Keep us posted as to your progress!

Dak

Looking good! Are you going to put a muzzle break on this beast??

Wow!

It takes a lot of talent and determination to inlet a stock blank by hand rather than using one semi-inletted by a duplicator. Are you doing the wood and metal yourself?

Dakota,

Target weight is 14 lbs. Heavier and it's too heavy to carry around, lighter and it will be unpleasant to shoot. I might shorten the barrel a few inches. I don't need all that extra barrel, not looking to get max velocity.



Diesel,

It will probably have a brake on it. Although, with a straitsided case like this and a bore this big the brake will probably not be as effective as it should be. More like a muzzle weight than any thing else.



500,

As I said above, I'm not doing any of the work, my gunsmith is. This is how he makes his stocks, from a blank, the "old fashioned way". After he gets this done maybe he'll get around to restocking my Fox shotgun. He's had the barrels and action sitting in a dark corner of his shop for several years now.

Is that a pac nor barrel?IF so did they chamber it? Are the go no go gauges availble?Have you ordered any of the Horneber brass.Lots of questions but this has really peaked my interest.

George,

I suspect you are right about the effectiveness of a muzzle brake. Have you settled upon initial test fire loads yet? If you have would you mind sharing?

If you don't mind my asking, what car(s) do you drag race? I am a recovering speed addict.

Scott

diesel_dude,
Yes it's a Pac-Nor. Yes, they did the chamber. It was long chambered, pre-threaded, and crowned.

Talk to Robgunbuilder(they're his) for the gauges, I sent them back to him last week.

I have 100 pieces of the Horneber brass sitting on the bench. Well actually I have 99 pieces, my gunsmith stole one of them.

Scott,

I really haven't made up my mind yet. Although I guess I better get to it. I think the first time out will be with loads less than and approaching .600NE ballistics.



My father drag raced in the 60's and gave it up when I was born. When I turned 18, I recomended we start racing. Silly me, I thought it meant I would drag race, but it turned out I have turned wrenches more than drove. We currently run a '69 Camaro in NHRA Stock. The old man hits a few National events and most points races in the North East Division.



The car runs in B/S. 396 cu.in. 4-speed, 3475lb car. We had the national 1/4 and 1/8 mile records(both time and mph) for about 4 years in the late 90's. The car will run in the mid 10.30's now. The national record in B is 10.30. We don't have the time right now to make a run at the record.



We still have the 85 Olds Cutlas we started with in '88. 307 cu.in. automatic. L/SA. We haven't done anything with it since the mid 90's and it shows. It needs a complete tear apart and rebuild.



Here's the B/S car:





Best Appearing Car

Sat, 5 Jul 2003, 11:07 PM

George Cottell won the Competition Photos Best Appearing Car award for the red, white and blue paint scheme on his 1969 B/S Camaro.





69 Camaro B/S 07/04/03

George,
Very nice, very nice indeed! My wife used to bracket race first generation Camaros, powered by 396 / 402s no less.

I don't have any digital pics of my old car. It was a chassis car, which was capable of cracking in the 8s in the 1/4 mile. Buick Skylark (gotta go fast with class you know) body on a Art Morrison chassis, ladder bar suspension, 467 BBC, Powerglide, Strange rear, etc, etc, etc. Had to enroll in DRA after marriage and kids. Wife decided it was too dangerous after a friend lost his right leg, below the knee, to a converter explosion. Bright side was, I got to spend all the money I got from selling out (car, engines, transmissions, trailer, truck, etc) on myself! Paid for a few guns it did, even though I only averaged about 25 cents on the dollar. You should have seen the look on the guys face who bought my primary engine for a measely $5500. He felt so bad he bought me a steak dinner, and paid me $75 for 10 quarts of oil.

Good luck with that cannon of yours, and with this years racing.

Scott

George- Very very nice! Looks like your gunsmith is doing a excellent job. I received the guages back thursday and thanks! I spent this weekend comparing a Heym .600 NE versus the .600 OK both using the same load of 165 grs of IMR7828, Fed 215, with a 900 gr Barnes solid bullet. Both guns were extremely accurate at 50 yrds offhand. However the felt recoil of the .600 Ok was about 1/2 that of the Heym. The Heym has a 23 inch barrel and the .600 OK is 26 inches. Velocities were 1950 fps for the Heym and 2070 fps for the .600 OK. Believe me even at 12 lbs you won't be shooting too many .600 NE's in this gun. My buddy took a classic picture of me with this gun at about 45 degrees in recoil. Nasty! In the .600 Ok the recoil is no problem at all. The combo of a F990 pad, good stock design,14lbs , a good muzzel brake and three mercury recoil reducers simply works wonders. My buddy took a turn also and basically after three shots with the Heym, he was actually worried about possibly breaking his collar bone. It flat hurt and I'm sure would in time induce a world class flinch. Not so the .600 OK! I can safely say that I doubt anyone building a .600 Ok without a muzzel brake will not exceed the 2100 fps level. Even at 2400 fps the .600 OK does not kick as hard as the .600 NE in the Heym IMHO. The torque is terrible though!

Finally, you need to buy a .600 NE sizing die from CH4D. The Horneber brass needs to have it's brass sized down a little more than the .600 OK sizer is capable of. I found the .600 NE sizer is perfect!-Rob

Holy Crap George
That looks great. Keep me updated on the progress.
Andy

Which mercury recoil reducers do you prefer? I am going to need some in my 550 Mag. Thanks in advance.

GeorgeS,
Is this a bit better?





Inletting is complete, now on to shapeing the stock, finish the metal work, blueing...

Does anyone have a chunk of ebony laying around that they aren't going to do anything with? I need to purchase a piece for the fore-end tip.

GeorgeinPA, are you sure that stick wasn't used on you? The stock is definitely taking shape. Too bad you live on one side of CONUS and I'm on the other side, otherwise I'd try to kill a few more brain cells by lighting off a couple of rounds off your monster.

Hey, Rob, are you going to post any pics of you guys lighting off the 600NE? Is it like in the Nickudu File pic where the guy at 150# lights it off?