I'm showing some of the in progress highlights of this build. Now...gotta be honest...these CZ's are not the easiest choice. Certainly large enough and stout. The Gibbs is a big cartridge and takes up a lot of space.. and the working parts... well...there's lots of them that you must be careful not to lose, since they are plenty peculiar,

The most demanding part was to make the action hold three down with compression room to single load one in the spout. (Total of four) I give thanks and gratitude to Wayne Jacobsen

(Bitterroot) for the way he shared his experience with these actions. Without his help, I'd most likely still be pulling out what's left of my hair!

Will post more of this build soon

Following along. What are the spec's you're aiming for?

11 1/4 lbs., full length stock.. Want to point out the large amount of metal removed from under the bridge and the extra large ejection port.

To gain room for these big rounds, CZ allowed the bolt to come back. much further than say...a 98....which is close the the same overall length

The rear of the round is therefore kind of buried and has to make it's way out a sort of tunnel to clear the action.

Some may note the longer ejector...this part was designed by Bitterroot and was the final touch that allowed reliable ejection

I first tried a similar approach by grinding the bolt stop shorter...worked, but not with authority of Bitterroot's part

For those of you longing to do a similar build, must also note that the Gibbs case has a much thicker rim...so thick that it won't fit under an unaltered extractor. It was touch and go with the original extractor...found a 98 with a thicker hook that gave adequate material.

As Wayne points out, the easier approach would be to machine back the bolt face a little...sort of split the difference. Jim Wisner has also; pointed out this technique in is writings about Enfields

There...jus told you everything I know...didn't take long, did it?

You're giving away all my secrets

To all, if building something larger than a 416 Rigby case on the CZ 550 or BRNO 602, start with the 416 Rigby donor action. There are subtle differences between it and what CZ calls their "belted magnum" action (375 H&H, 458 Lott/Win Mag) It makes the job easier by far. Sometimes though we are stuck with what we have.

Thank you, Duane and Wayne. Looking forward to how this turns out!

quote:

Originally posted by Brandon.Gleason:
Thank you, Duane and Wayne. Looking forward to how this turns out!

I echo this.

There were factory CZs in .505 Gibbs what I believe. Or am I wrong?

Jiri

The factory in the Czech Republic only produced chamberings in 375 H&H, 416 Rigby, 458 Win Mag, and 458 Lott as far as I'm aware. For the US market, all other calibers were put together using new receivers and aftermarket barrels at the CZ Custom Shop in Warsaw, Missouri. McGowan Precision Barrels made a lot of the aftermarket barrels for these chamberings, including the 505 Gibbs. As far as different chamberings made in other countries, I don't know.

Mike, read down the CZ blurb that you linked to. Triple River Gunsmithing ( CZ Custom Shop) made the odd chamberings. Could that be considered "factory"? Maybe. I'm thinking of "factory" being in BRNO Czech Republic. Triple River made these rifles by either using new receivers or tearing down factory-new rifles that were made in BRNO then re-barrelling to the custom chamberings.

I believe you are correct. They were custom rifles that came from CZ. I just recalled that they offered them in a number of interesting chamberings. I thought about one in a .425 WR, always thought that would be pretty nice. It may have also been that shop that was doing the synthetic stocks for the Safari Magnums.

Yes, you are right. It was probably not made here in Czech Rep.

But one thing:

Rifles here are for a long time made in Uhersky Brod city, not Brno. Brno is/was "trademark", but manufacturing of ZKK and later CZ 550 was in Uhersky Brod, since 1966 or so.

Jiri

Well...as far as I can go at this time. The rifle is to be engraved this coming Spring.. In the meantime, the client will '"wring it out" and develop loads.

The video of me shooting the rifle was sent to client to show the four round capacity...for which he paid extra. Lotsa recoil here!

Very cool !!! 50 cal's and larger look great in full-length stocks.
It didn't rock you too bad. The first shot is always the worst, for me at least.

Absolutely beautiful. I have never seen a DG-caliber rifle with a full stock before. Really looks good!

What length is the barrel? It looks quite stubby.

Did you do anything to the magazine to reduce the battering on the nose of the cartridge while in recoil

Gorgeous!

You got used to the recoil.

quote:

Originally posted by Zephyr:
Did you do anything to the magazine to reduce the battering on the nose of the cartridge while in recoil

Mag is JUST long enough for the cartridge (at any angle) There was no noticeable battering of the nose.

quote:

Originally posted by Rockdoc:
Gorgeous!

You got used to the recoil.

I was a little surprised by the first sho1...which was a 600 gr instead of the 525 I've shot in it before ( Loaded to Same velocity)

Beautiful rifle!!! Thanks for sharing.

Duane I hope that I have half your fortitude when I am approaching your age.

Beautiful little hand cannon!

Just a number...?

That is one handsome "snotslinger"! Not sure I am brave enough to shoot it four times in a row without a bottle of Tylenol within easy reach...

Pretty cool.....really enjoyed the action footage.
You are crazier than I thought.

Stellar rifle. You handle the recoil of the .505 way better than I do!

quote:

Originally posted by Mike_TX:
Pretty cool.....really enjoyed the action footage.
You are crazier than I thought.

That's the nicest thing you ever said to me..HAR!

I love that forend bar attachment ala the old muzzle loaders..I have that on my 7x57. Its always been the "nice touch" IMO..What a nice rifle.

Sweet , love the full stock , now your making me want to send you my CZ Lott