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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles
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wharf
.300 member


Reged: 02/08/04
Posts: 156
Loc: aust
400 H&H magnum
      #61118 - 13/08/06 09:39 PM

I have a BRNO 602 300wm,I want to rebarrel it to something with a lot more boom.I am considering a few cartridges,400H&Hmag,416 rigby,416 taylor.400H&H is looking like the one,with being able to make cases for it from 375H&H brass.Any ideas fellas how much work has to be done to the rifle for the 400H&H?

--------------------
if it bleeds we can kill it.

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JTOMLINSON
.300 member


Reged: 16/02/05
Posts: 188
Loc: York, England
Re: 400 H&H magnum [Re: wharf]
      #61137 - 14/08/06 05:43 AM

I have some of the rounds in my collection and in essence it is no more nor less than a .416 Remington, but arrived at by a complicated and expensive route.

ammo is loaded for H&H by Wolfgang Romey, I think, but may be wrong on bore size being less than .416, but haven't checked my samples, so as I said I will stand correcting here.

The case has minimal shoulder due to the taper so requires the belt to headspace. It would require chamber reamers that few will have.

Peronally, i would take advantage of that large action and go for .416 rigby anyday, but that is purely my own personal opinion.

If you do go that route you will however end up with a perfectly serviceable cartridge, kind of like re-inventing the .416 Taylor or .416 Remington

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JTOMLINSON
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Reged: 16/02/05
Posts: 188
Loc: York, England
Re: 400 H&H magnum [Re: JTOMLINSON]
      #61138 - 14/08/06 05:51 AM

Just miked the bullet on one of my sample rounds and it shows .411", which is as I thought. Bullets are available, the Romey ammo uses Woodleighs, but .416 are easier to obtain most places.

Having looked at the case, it would I feel headspace O.K from the shoulder. This does not alter my opinion FWIW - Rigby

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Mike_McGuire
.333 member


Reged: 11/06/05
Posts: 348
Loc: Sydney Australia
Re: 400 H&H magnum [Re: wharf]
      #61147 - 14/08/06 04:00 PM

wharf

Could you elaborate on why the 400 H&H is what you are looking at?

Are you thinking cast bullets and the long neck and no change in headspace because of the belt?

If you just want a "big banger" (which the 400 H&H is not) then I would sell the rifle and buy a CZ in 416 Rigby. The 416 Rigby gives you the big cartridge......the 400 H&H only gives you a case about the size of your existing 300 Winchester.

Mike

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wharf
.300 member


Reged: 02/08/04
Posts: 156
Loc: aust
Re: 400 H&H magnum [Re: Mike_McGuire]
      #61394 - 19/08/06 12:01 AM

I just want something different mike,I would love a new CZ 416 rigby,but the brass is to pricey and hard to find I have heard.

--------------------
if it bleeds we can kill it.

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500Nitro
.450 member


Reged: 06/01/03
Posts: 7244
Loc: Victoria, Australia
Re: 400 H&H magnum [Re: wharf]
      #61399 - 19/08/06 01:09 AM

Wharf,

I commend you on thinking laterally and wanting something different, however Re "CZ 416 rigby, but the brass is to pricey and hard to find I have heard"

416 Rigby brass is readily available.

If you are worried about the price of 416 Rigby Brass,
I don't think you are taking into account the whole cost of the
project and IMHO, the 416 Brass is the least of your costs.

1. Get someone to make an uncommon barrel size with a .411 bore.
2. Get it profiled for you and threaded to fit a CZ Action
3. Add sights etc
4. Get a gunsmith to make it work / feed.
5. Special Order dies
6. Limited selection of .411 bullets

7. You only need to buy 100 416 Cases and if you reload correctly (IE carefully neck size, only shoot the brass in one gun) you should be able to get up to 10 reloads from each case.
8. Large Selection of both premium and non premium (plinking bullets) available in .416 calibre.

That should do it for a while.

I think overall it would be cheaper to buy a CZ in 416 Rigby
and get on with having fun.

Please don't take this as "pissing on your idea" which as I said above I commend, it was your justification that I am commenting on.

Good luck with your project - and keep ansking questions !!!

500 Nitro


Edited by 500Nitro (21/08/06 11:37 AM)

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k80
.333 member


Reged: 07/05/04
Posts: 314
Loc: San Antonio ,Texas, U.S.A.
Re: 400 H&H magnum [Re: 500Nitro]
      #61500 - 21/08/06 11:22 AM

500 Nitro: Well thought out.

--------------------
Ken
San Antonio

Welcome to South Texas

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Con
.333 member


Reged: 24/05/04
Posts: 261
Loc: Victoria
Re: 400 H&H magnum [Re: k80]
      #61557 - 22/08/06 01:30 PM

wharf,
I'm in the mid-stages (getting quotes) of bringing a 411/338 reamer in.
I'll be checking on barrels this week ... but I think Sprinter can make them. If they make the barrel I'll let them chamber it as well using my reamer and fit it to a sporterised M17 action. If a 'smith can make a 416Taylor work they can make a 411/338 feed. For sights I'm using standard Remington front and rear but may end up with a peep at the back. Dies ... $59 ... cheap! Projectiles ... Woodleigh 400gr soft and FMJ (do you need more?), Hornady 300gr, Barnes and the cheap 41cal pistol projectiles for plinking.
Hoping to have mine together by the end of the year.
Cheers...
Con

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500Nitro
.450 member


Reged: 06/01/03
Posts: 7244
Loc: Victoria, Australia
Re: 400 H&H magnum [Re: Con]
      #61566 - 22/08/06 04:45 PM

Con

where do you get dies for $59 ?

and what make ?

500 Nitro

Edited by 500Nitro (22/08/06 05:26 PM)

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Con
.333 member


Reged: 24/05/04
Posts: 261
Loc: Victoria
Re: 400 H&H magnum [Re: 500Nitro]
      #61570 - 22/08/06 05:02 PM

Lee 416Taylor with expander removed. Total cost AUD$59 and you get a nice tapered expander which can be turned down or used to open your 338WM cases. Just too simple!
Cheers...
Con

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500Nitro
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Reged: 06/01/03
Posts: 7244
Loc: Victoria, Australia
Re: 400 H&H magnum [Re: 500Nitro]
      #61571 - 22/08/06 05:26 PM


Con

Thanks

500 Nitro

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Con
.333 member


Reged: 24/05/04
Posts: 261
Loc: Victoria
Re: 400 H&H magnum [Re: 500Nitro]
      #61574 - 22/08/06 09:15 PM

No worries ... the cases sitting infront of me are basically reformed 458WMs. Outside neck diameter: 0.423" inside neck diameter is 0.403". Once I get my hands on some 0.410" pistol projectiles I'll see whether you can crimp using the 416Taylor die. The 416Taylor die will definately flare them enough to seat a 0.410".
Cheers...
Con

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mussd0
.224 member


Reged: 11/08/06
Posts: 7
Loc: Adelaide, South Australia
Re: 400 H&H magnum [Re: wharf]
      #62412 - 12/09/06 07:53 PM

Hello there,

I too have been bitten by the big H&H cartridge bug and have had a .465 H&H reamer made for my project.
My only suggestion is to resurch the project thoroughly before rushing in. I am finding it hard to get a barrel and brass for the 465.
Brass in your case shouldn't be a problem a mate of mine fire forms factory 375 loaded ammo out to 458 lott so this should work just as well for the 400.

Loading dies are another problem though if you have a reamer dies can be made.

To make things easier I am contemplating re-sizing the neck of my 465 reamer to 458 witch will give an endless supply of barrels and projectiles.

Good luck with your project mate.

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wharf
.300 member


Reged: 02/08/04
Posts: 156
Loc: aust
Re: 400 H&H magnum [Re: wharf]
      #62550 - 16/09/06 10:20 PM

I think i may have found a brno 375H&H mag barrel for sale.Its not a 400H&H i know,but maybe its a better alternative.The barrel is 22inch without sights.I dont know if there is any difference in the bolts between 300wm and 375H&H mag?The rims look to be the same size. Is there going to be any work needed other than fitting the barrel and headspacing it?Is the magazine going to need work?Thanks for all your comments and advice fellas,I will end up with a 416 rigby one day,maybe not this year though.

--------------------
if it bleeds we can kill it.

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zaitsev
.300 member


Reged: 15/05/06
Posts: 138
Loc: Trysil, Norway
Re: 400 H&H magnum [Re: wharf]
      #62570 - 17/09/06 08:11 AM

The 300 magnum and the 375 has the same case diameter as they asre based on the ither the 300 or 375 H&H Case. So is most of the Weatherbys cartridges and winchester magnum belted ones like the 264, 300,338,and 458 win mag.

the 375 is a exellent choice and it has more availvable ammo and brass for it then the 400 H&H. Plus there is so many bullets availbele that is designed to be used for various hunting situations.

--------------------
The world hasnt got enough big Bores ,and people who uses them

(mr rigby at AR)

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