Heym now offers a 505 Gibbs version in the Express model range:-

https://heym-fabrik.de/?produc...se-express-505-gibbs

Chris unpacked the first US delivered Heym/ Martini 505 -

I handled it today-
What a beaut-

He and Tony are off with it and the new 89B 450-400 Light to HSC then SCI.

I will catch up to them at SCI next Monday

If he gets a free minute during this busy time, perhaps Chris will post a bit more on the rifle.

Will plan on swinging by at SCI to take a look and talk with Chris

I wonder if the 505 is built on the same Express action as all the other Express calibres, or whether a special larger action was designed especially for the 505, thus accounting for the large price discrepancy for this calibre?

quote:

Originally posted by PD999:
I wonder if the 505 is built on the same Express action as all the other Express calibres, or whether a special larger action was designed especially for the 505, thus accounting for the large price discrepancy for this calibre?

From your link:



"Details
Wie Express, aber mit größerer Systeminnenform; 3 Patronen im Magazinkasten ( 3+1 ). Laufmündung; 22mm. Schaftaußenform größer, im Vorderschaftbereich breiter. Schaftholzklasse 7; mit Glanzfinish und geschlossenen Poren. Teilbunteinsatz; Schlösschen und Rahmen. Visier wie Doppelbüchsen Mod. 89."

Google translate:

"Details
Like Express, but with a larger system inside; 3 cartridges in the magazine box (3 + 1). Muzzle; 22mm. Shank outer shape larger, wider in forearm region. Wood class 7; with gloss finish and closed pores. Part of chromatic use; Castle and frame. Visor like double rifles Mod. 89."

Well,
Similar could be said of the CZ 550 Magnum .505 Gibbs:

"Like 550 Magnum, but with a larger system inside; 3 cartridges in the magazine box (3 + 1)."

Sumbuddy take a ruler and caliper to SCI, take notes, and report back.
It would be interesting to know the inside width of the magazine box at front and rear,
and the overall length of the action, on the .505 Gibbs, between centers on the action screws at least,
compared to a .416 Rigby by Heym.

Rip ...

quote:

Originally posted by RIP:

Sumbuddy take a ruler and caliper to SCI, take notes, and report back.

It would be interesting to know the inside width of the magazine box at front and rear,
and the overall length of the action, on the .505 Gibbs, between centers on the action screws at least,
compared to a .416 Rigby by Heym.

+1

In case anyone forgot;

Original Heym 505 post

At 0.785" it does have a larger bolt diameter than Brevex and CZ 550 Magnums (0.700"), Granite Mountain Magnum (0.750"),
but it is not as large as The MRC PH (0.805").
I have not seen any dimensions on this action length and box widths.
I do love to check for Mauser Cosine Law perfection in magazine boxes.

quote:

Originally posted by new_guy:
Our action is so much larger than a standard 98, that it really calls for the Gibbs I think.

I'm also thinking of a ghost ring / peep in the rear bridge (dovetailed)... case colored action too...

quote:

Originally posted by new_guy:
Bolt diameter is no problem:
Standard '98 Mauser = .700"
Magnum Mauser = .750"
HEYM Mauser = .785"

quote:

Originally posted by new_guy:
The 505 will fit (3+1.)

Rip ...

quote:

Originally posted by Cougarz:
In case anyone forgot;

Original Heym 505 post

Thanks for the reminder Cougarz!

quote:

Originally posted by RIP:
At 0.785" it does have a larger bolt diameter than Brevex and CZ 550 Magnums (0.700"), Granite Mountain Magnum (0.750"),
but it is not as large as The MRC PH (0.805").
I have not seen any dimensions on this action length and box widths.
I do love to check for Mauser Cosine Law perfection in magazine boxes.

I also wondered whether the MRC PH would be better for the .505, as I was worried whether there was enough bolt face left for the bigger case head of the .505; the MRC PH is available with bolt face sizes of .596" or .648". http://montanarifleco.com

.
Importantly the Heym 'Martini-Express' action doesn't have a 3rd integral lug! No matter the reason given ('modern steels mean no need for 3rd lug' etc), it would have been nice to have the 'comfort' of having that 3rd lug. Bean-counters at work?

quote:

Originally posted by PD999:
.
Importantly the Heym 'Martini-Express' action doesn't have a 3rd integral lug! No matter the reason given ('modern steels mean no need for 3rd lug' etc), it would have been nice to have the 'comfort' of having that 3rd lug. Bean-counters at work?

The base of the bolt handle mates into a recess in the action to serve as a backup to the two primary lugs.


Stop by and see it at SCI.

We are offering the 505 for less than 18K Euro.

quote:

Originally posted by new_guy:

quote:

Originally posted by PD999:
.
Importantly the Heym 'Martini-Express' action doesn't have a 3rd integral lug! No matter the reason given ('modern steels mean no need for 3rd lug' etc), it would have been nice to have the 'comfort' of having that 3rd lug. Bean-counters at work?

The base of the bolt handle mates into a recess in the action to serve as a backup to the two primary lugs.


Stop by and see it at SCI.

That bolt, blocking recess is in my mind no very similar to the additional "lug" on a Springfield bolt body.

quote:

Originally posted by new_guy:

quote:

Originally posted by PD999:
.
Importantly the Heym 'Martini-Express' action doesn't have a 3rd integral lug! No matter the reason given ('modern steels mean no need for 3rd lug' etc), it would have been nice to have the 'comfort' of having that 3rd lug. Bean-counters at work?

The base of the bolt handle mates into a recess in the action to serve as a backup to the two primary lugs.

I read otherwise, my bad; please see the middle review, third page, left paragraph: HEYM Martini Express by Johan van Wyk, African Outfitter Jan/Feb 2017
http://www.heymfanatics.co.za/...iews-and-tests.html. Thanks!

Man-oh-man, that Hemingway dude really liked the 505G, ... despite having never fired one.

quote:

Originally posted by RIP:
At 0.785" it does have a larger bolt diameter than Brevex and CZ 550 Magnums (0.700"), Granite Mountain Magnum (0.750"),
but it is not as large as The MRC PH (0.805").
I have not seen any dimensions on this action length and box widths.
I do love to check for Mauser Cosine Law perfection in magazine boxes.

quote:

Originally posted by new_guy:
Our action is so much larger than a standard 98, that it really calls for the Gibbs I think.

I'm also thinking of a ghost ring / peep in the rear bridge (dovetailed)... case colored action too...

quote:

Originally posted by new_guy:
Bolt diameter is no problem:
Standard '98 Mauser = .700"
Magnum Mauser = .750"
HEYM Mauser = .785"

quote:

Originally posted by new_guy:
The 505 will fit (3+1.)

Rip ...

Sooooo this Heym Mauser can be made to shoot the 577 TRex?!?!??!!!???!???