.505 Gibbs project

[mickb]

458 Lott is an interesting chamber that works.Shortening the 375 H@H to fit 30/06 size magazines made the 458 Win Mag a bit underpowered

Interestingly Jack lott was going off older concepts here as well. The 450 Ackley, 450 mashburn and 450 Watts were full 375H&H wildcats done a lot earlier. They all had small shoulders though and I believe one of his marketing angles was being cylindrical the Lott could feed 458 win mag as well.

[duncan61]

From what I have read Winchester shortened the 375 H@H case to fit 30/06 length magazines and called it 458 Win Mag It failed Jack lott on a cape buffalo that wounded him so he used the full size 375 H@H case and got the extra 200 fps to get the heavy bullets closer to 2200 fps which made them more reliable on big game

[mickb]

From what I have read Winchester shortened the 375 H@H case to fit 30/06 length magazines and called it 458 Win Mag It failed Jack lott on a cape buffalo that wounded him so he used the full size 375 H@H case and got the extra 200 fps to get the heavy bullets closer to 2200 fps which made them more reliable on big game

Probably true but wildcatters had been necking up 375H&H to 458 for that reason already since ww2. Lott knew of all the other cartridges, and to his credit he got his version across the line as a standard chambering in the late 80's.

[mickb]

Crackers btw you are probably on top of this but the other barrel options for import are Phoenix imports for Pac-nor and Graeme Spraggon for Lothar Walther. Single order is expensive, tacking onto their regular orders is the cheapest, but obviously you have to fit in with timeframes

[cracker]

cheers thanks for replies ! got onto tse in qld today hopefully sort something out asap, 12 - 16 week wait.

had a look at a cz550 safari other day at my mates place made in mexico???

my 458lott is made in the czech republic
since when have they been made in mexico ?

brass has rocked up and my dies should in stock in the u.s. end of august

[mickb]

3-4 months, not bad for an oddball barrel mate. What brass and dies if you dont mind me asking? I used to get Ch4D, RCBS were expensive when I was buying.

[cracker]

3-4 months, not bad for an oddball barrel mate. What brass and dies if you dont mind me asking? I used to get Ch4D, RCBS were expensive when I was buying.

yeah rcbs $199 usd on brownlles website.
brass is bertram.
not sure how the big rcbs dies will fit my lee single stage press? says something about needing a bushing??

[Bill]

CZ550 505 Gibbs just popped up on used guns....

[mickb]

Edited mate

[cracker]

Looks a pretty good deal 4350 as it has at least 700 in extras.these retailed at about 4400 new a few years ago

shhhhhhh ! i know.

[SCJ429]

CZ550 505 Gibbs just popped up on used guns....

And I has an interesting bit of walnut on it. You could get this project done for $4,000 with dies and brass.

[Bill]

Agreed, timber work is where build costs gets out of control. If it was sub $4k, say $3600 I would have grabbed it

[SCJ429]

I am thinking the same thing myself, I would be proud to own that 550. Should I make him an offer.............

[mickb]

The value if these will climb if it hasn't already. It will end up being a lot more than the retail in my opinion.

[cracker]

not going to bother with building one of these anymore. something came up yesterday....

[Bill]

smart move cracker, if this was still available next week I was going to make old mate an offer.

[Baz460]

Cracker.
2 weeks ago I bought a 505 and am just waiting for my PTA to arrive.

I got some loaded rounds with it, and I definitely think that they are not for the recoil sensitive.

Woodleigh 525 grn soft points, 138 grns of 2213sc.

Woodleigh 600 grn Protective Points, 129 grns 2213SC.


Hornady DGX 525 grn SP's 136 grns RE 17.


Will let you know how it performs on Buffalo very shortly.

Cheers Baz.

[SCJ429]

Good work Baz, good luck on your hunt.

What action is used on your Gibbs?

[Baz460]

It’s a CZ 550 custom safari.

[cracker]

Cracker.
2 weeks ago I bought a 505 and am just waiting for my PTA to arrive.

I got some loaded rounds with it, and I definitely think that they are not for the recoil sensitive.

Woodleigh 525 grn soft points, 138 grns of 2213sc.

Woodleigh 600 grn Protective Points, 129 grns 2213SC.


Hornady DGX 525 grn SP's 136 grns RE 17.


Will let you know how it performs on Buffalo very shortly.

Cheers Baz.

Yeah im expecting the recoil to be stout but thats parts of the deal.

thanks for the load data seems to not be a heap in written literature that i own

ill report back once iv shot mine.

[Baz460]

Cracker.
I have a CZ Safari Grade 505 Gibbs and have just returned from a buff hunting trip in the Territory.
The 505 with 130 gns of AR 2213SC and a 600 grn Woodleigh PP is absolutely devastating on the largest of bulls, shoulder shots would blow them of there feet.
You will not be disappointed with your decision to go with a 505, providing you don't us nanna loads, so get it and enjoy.
Cheers Baz.

[Bill]

Sounds awesome Baz, where did ya hunt and how did you find the dry condtions ?

Im planning on atleast 1 trip next year with my A Square, 2 if work allows.

[Baz460]

Bill, I hunted with Aaron Corbett from Australian Outback Buffalo Safaris, and it was great. I spent two weeks with Aaron, and he shot a bull over 100 inches with my Gibbs and is now hooked on the big bores.
Aaron said he has never seen buff react to a bullet like from the 505.
Cheers, Baz.

[Bill]

I could only imaging Baz !!, I just bought some 600gr Woodleigh FMJ to test, will load em up in January when its nice and hot....

Any pics mate ?

[Baz460]

Bill, I tried to upload a couple of pics, but it didn't work, said the file is to big.

[Bill]

maybe try and reduce the resolution abit, right click to edit usually around 1200x800 is plenty

I also use ' BBI image hosting ' , click on BBcode full link and then copy and paste

[Baz460]

The 100 plus inch bull that Aaron shot with the Gibbs.

[Bill]

Nice Bull, geez Aaron makes the Gibbs look small

[cracker]

looks good, did the scope smash you in the face?
iv not been game to put an optic on mine yet

[Baz460]

My first bull. And the 505 claimed one bloke that had a shot, there was even skin on the scope!