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Rebuilding a BRNO Mauser....
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 Posted: Mon Oct 29th, 2012 12:58 PM
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Mortis
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Not so long ago I asked about building a 300 H&H on my BRNO 8mm Mauser action.

Research into this says my wife will not take a second job to pay the added expense of opening the receiver and lenghtening the magazine and stock.

So.... how about a 338-8mm??

 

 



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 Posted: Mon Oct 29th, 2012 02:33 PM
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jackson1
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Mortis, I'm guessing here, isn't the 8mm Mauser the 7 x 57 case open to 8mm. If so, the 7 x 57 case head is the same or very close to the 30-06. That would give you a bunch of 8mm options, with out the expense of bolt face and magazine modifications.



 Posted: Mon Oct 29th, 2012 03:50 PM
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BEAR
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Lots of liberated 8x57 were changed to 8mm-'06 in the 1950s.
But in reality, the 8-06 dosen't do much better than the 8x57mm itself.

Personally, I think the 8x57 is just about perfect for north americal game.

The only 'flaw' on the 8x57 is the factory ammo made in the USA, It is loaded low due to risk of liability from using the wrong ammo or using it in ancient rifles.

Get a reload that is using modern cartridge pressure and it is an animal in the class with the 338-08, 325 wsm and other.
If you buy Norma or RWS they make great ammo, and the 8mm with the Norma Vulcan ammo is awesume. My double loves them.



 Posted: Mon Oct 29th, 2012 04:00 PM
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Well....the barrel is toast on this puppy.... needs replacing... such is my thinking on a different bullet.



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 Posted: Mon Oct 29th, 2012 06:04 PM
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Paul B
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jackson1 wrote:
Mortis, I'm guessing here, isn't the 8mm Mauser the 7 x 57 case open to 8mm. If so, the 7 x 57 case head is the same or very close to the 30-06. That would give you a bunch of 8mm options, with out the expense of bolt face and magazine modifications.

Actully, it's the other way aound. The 8x57 came out in 1888 IIRC and the 7x57 in 1892. I have three rifles in 7x57 and I love them.

Now I have a few questions for the OP. Is your rifle a military gun or a BRNO sporter in need of a new barrel?
If a military, it can take major bucks to convert to a sporter. If a sporter, any decent gunsmith can rebarrel and blue the new barrel and you'd be good to go depending on the magazine length.
Next, what is the length of the magazine? There are 8x57 Mausers that have magazines too short for even a 30-06. I had an Oberndorf Mauser in 7.65x53 that was too short to convert to 7x57 without extensive magazine work. It was a good .25" too short so that one ended up as a .308 Win. I really did want it in 7x57 though.:sad: An FN Mauser I had was rebarreled to 7x57 and it was originally a .270 Win. that had a bad barrel. Somebody ran over it with a truck or something because it never did shoot straight. I bought it foe the action and with a new stock and barrel she's a keeper. :thumbs:
If your rifle is a military model here's a rough idea of what it can run to make a sporter. This is from my gunsmith's price list. He is not cheap but he is damn good. He's built me three rifles and tuned uo four more. All will now shoot MOA or less depending on the load.
If a sporter a rebarrel with bluing, $485.00
If a military, same price for the rebarel.
Bolt hanlde to accomadate scope $85 plus $10 if althering inletting of stock for the new handle. The rebarrel is with a Douglas Premium barrel. That's what I've gone with and they work fine.
A blue job if needed in satin, $115, glas beaded, $135 and Micro-Diamond (vey glossy) $230.That's for a gun with metal in decent shape If metal is pitted add $50 For ribbed barrels add $45. Don't think you'll want a bull or octagon barrel so I won't add those. IIRC, drilling and tapping for a scope was $20 a hole.
I gave him a 1909 Argentine mauser action and had him build me a .280 Remington classic rifle. I furnished the raw stock blank, trap door buttplate, grip cap nd Douglas barrel I got a deal on. The supplies ran me #400. When my gunsmith was though, I had a hair over $3,000 in the rifle but this one is stunning. No load tried so far has gone over 1.0 and most run un the .75" range. What raised the price some was he farmed the stock out to custom riflemaker Sterling davenport to do the Fleur de Lis checkering pattern. The finish on the rifle is so deep that it's like looking into a pool of clear water and the grain pattern is the bottom of the pool. I wish I know how to do a photo but I doubt it would do justice to that stock. The .308 he did for me is not quite as fancy but there's close to $2k in that one as well as the 7x57 Mauser he made me. Customizing military rifles can get expensive as hell and there is no way I'll ever get any money back should I have to sell one.
However those mentioned plus about 6 others would be the last I would ever think o selling. :wink:
Paul B.



 Posted: Mon Oct 29th, 2012 10:42 PM
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If it's a standard length 1898 action, .338/06 would work fine. If it's a medium or short action, a .338 Federal (.338/08) would work. That way you don't need to hunt down an odd reamer, just off the shelf stuff.



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 Posted: Mon Oct 29th, 2012 11:21 PM
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It's an 8mm Large Ring Action.....



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 Posted: Tue Oct 30th, 2012 12:58 AM
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You probably need to ask your self..."what do I want to use this rifle for?"

You have a commerical mauser action it sounds like. Might be good to keep it in a Europe cartridge.
8x57mm, 7x57, 9.3x62 pop into my mind all would be easy/low cost conversions ( try E. Shaw barrels).



 Posted: Tue Oct 30th, 2012 03:04 AM
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Mortis, I've shot an 8mm Mauser for years. You can push an 8mm bullet out of one of these as fast as you can from an -06. But being larger in caliber it delivers a bit more thump. Other than using factory ammo (loaded to about 30-30 level)I've never felt undergunned using the 8. I never wanted an 8mm but got one as a gift from my left handed BIL. Not having a decent rifle at the time I gladly accepted the old girl in it's Bishop stock and crooked scope mounting holes bearing an old tasco with "moving" crosshairs. The first year I used it I killed a what'll probably be the biggest buck I'll ever shoot running flat out at well over 150 yds. It was love at first shot. It now wears a different scope and I've changed loads a couple of times. Right now it's a 195 gr hornady with a max load of H4350.  I actually feel a bit guilty if I'm hunting with anything else. Try one you'll like it. RD



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 Posted: Tue Oct 30th, 2012 06:22 PM
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BEAR
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The old girl gets your respect Rocky.

Just packing for a week of deer hunting in NC. only need one rifle, but my rain gun is a 260 Kimber. So I'm also take a fair weather rifle....my double 8x57 is looking at me as I type. I offended it by sliding a m7 in 348 into a case. that 8mm get sad eyes, sort of like a lab.



 Posted: Tue Oct 30th, 2012 06:38 PM
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Mortis
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BEAR wrote: You probably need to ask your self..."what do I want to use this rifle for?"

You have a commerical mauser action it sounds like. Might be good to keep it in a Europe cartridge.
8x57mm, 7x57, 9.3x62 pop into my mind all would be easy/low cost conversions ( try E. Shaw barrels).


It's a Military BRNO Large Ring.....

Stock was cracked...... barrel shot out & rusty...... blueing nearly gone.... and darn cheap!!

I bought it cause it's a BRNO......

What I want to use it for has no bearing on the matter....... kinda like climbing a mountain.... cause it's there....:wink:

 

 



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 Posted: Tue Oct 30th, 2012 07:47 PM
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:sofa: I'll repeat myself and ask once more. What is the length of the magazine box? :sofa: If it's long enough for a 30-06 load to fit, then you have a lot more options as to what cartridge to use. If it's too short for an 06 round (That's loaded round nut just an empty shell) than your options diminish somewhat. Just my not very humble opinion but I'd build a custom on a Mauser action well before I choose the vaunted Pre-64 M70. The basic 98 Mauser was an instrument designed to be used by even the most frightened recuit stuck in his first ever battle. It was meant to work every time all the time. It was an implement of war. The M70 was a fair copy of the 98 mauser with somr 1903 Springfield ideas thrown in for good measure. :rolleyes::lol: I've had several of those Pre-64 M70s over the years and frankly don't regret selling them one bit. The only one I kind of miss is the .375 H&H. It was one hell of a good shooter but dang it all, it needed wheels Come to think of it my Ruger #1 Tropicals are no lightweights either. :rolleyes:
All the above is strictly my personal opinion and anyone can feel free to agree or disagree. It is fair to note that with rare exception, all my custom rifles are built on genuine Mauser actions. :thumbs:
Paul B.



 Posted: Tue Oct 30th, 2012 10:00 PM
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brno...brno...my custom 25-06 is on a brno.
sweetheart of a rifle.
i'm in the middle of another one sept i cut up a perfectly good 8mm rifle to start making another 7x57 ackley one.
nobody bothered to tell me minty pre import marked k-98 mausers were worth money.
oh well it'll be done someday.



 Posted: Tue Oct 30th, 2012 10:52 PM
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Paul B wrote:
:sofa: I'll repeat myself and ask once more. What is the length of the magazine box? :sofa: If it's long enough for a 30-06 load to fit, then you have a lot more options as to what cartridge to use. If it's too short for an 06 round (That's loaded round nut just an empty shell) than your options diminish somewhat. Just my not very humble opinion but I'd build a custom on a Mauser action well before I choose the vaunted Pre-64 M70. The basic 98 Mauser was an instrument designed to be used by even the most frightened recuit stuck in his first ever battle. It was meant to work every time all the time. It was an implement of war. The M70 was a fair copy of the 98 mauser with somr 1903 Springfield ideas thrown in for good measure. :rolleyes::lol: I've had several of those Pre-64 M70s over the years and frankly don't regret selling them one bit. The only one I kind of miss is the .375 H&H. It was one hell of a good shooter but dang it all, it needed wheels Come to think of it my Ruger #1 Tropicals are no lightweights either. :rolleyes:
All the above is strictly my personal opinion and anyone can feel free to agree or disagree. It is fair to note that with rare exception, all my custom rifles are built on genuine Mauser actions. :thumbs:
Paul B.


SOrry Paul..... missed your question.....

And I forgot that I mentioned the current location of the action was in the 300 H&H thread, not this one.

The action is in Texas....awaiting my decision.



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 Posted: Wed Oct 31st, 2012 12:47 AM
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I am in similar circumstances with a Yugo refurb-ed M98 that has zero rifling left in the barrel, has had the stock "sporterized" by bubba and would just cost too much to restore to a military configuration.
After a LOT of dreaming and research ( E.R. Shaw will NOT open the action for .375H&H length cartridges - I asked. Too many lawyers involved now. ), I've decided to put it into 6.5x55 and build it into a lightweight. First as a stalking rifle for me, then as a youth rifle for a future grandchild. I already have a Timney trigger for it and will soon send it to Shaw.
Older son's first rifle - at 11 - was a 6.5 swede sporterized by Kimber and he still loves it.
Unless you just WANT a 8mm-.338 wildcat, I'd choose the full-blown .338 - it is very easy to load for and I've not had any difficulty finding extremely accurate ( under 3/4" 3-shot groups ) loads for either of my sons' rifles ( Winchester and Tikka ). Anyway, the need for a new barrel opens up a world of possibilities for the new caliber/cartridge. I started with about a hundred possibilities and weeded down to a final six before deciding on the 6.5 based on my expectations and probable use rather than the "maybe" or "just-because".
My short list - .240 Weatherby, .257 Roberts, 6.5x55 ( the winner, finally), 7x57, .338 Win Mag, .375 Ruger .
Sweet Dreams !



 Posted: Wed Oct 31st, 2012 01:12 AM
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wheezengeezer
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Mortis wrote: Paul B wrote:
:sofa: I'll repeat myself and ask once more. What is the length of the magazine box? :sofa: If it's long enough for a 30-06 load to fit, then you have a lot more options as to what cartridge to use. If it's too short for an 06 round (That's loaded round nut just an empty shell) than your options diminish somewhat. Just my not very humble opinion but I'd build a custom on a Mauser action well before I choose the vaunted Pre-64 M70. The basic 98 Mauser was an instrument designed to be used by even the most frightened recuit stuck in his first ever battle. It was meant to work every time all the time. It was an implement of war. The M70 was a fair copy of the 98 mauser with somr 1903 Springfield ideas thrown in for good measure. :rolleyes::lol: I've had several of those Pre-64 M70s over the years and frankly don't regret selling them one bit. The only one I kind of miss is the .375 H&H. It was one hell of a good shooter but dang it all, it needed wheels Come to think of it my Ruger #1 Tropicals are no lightweights either. :rolleyes:
All the above is strictly my personal opinion and anyone can feel free to agree or disagree. It is fair to note that with rare exception, all my custom rifles are built on genuine Mauser actions. :thumbs:
Paul B.


SOrry Paul..... missed your question.....

And I forgot that I mentioned the current location of the action was in the 300 H&H thread, not this one.

The action is in Texas....awaiting my decision.
A 300 H&H will require a bit more work.Length,boltface,and magazine.Standard mausers are not well suited for that without some work.A Win mod 70 or the like would be better.



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 Posted: Wed Oct 31st, 2012 02:19 AM
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I used to have a .338-06. It was awesome.

If you want a .338, go with the .338 on the 8MM case you shouldn't need any other changes and the results will be almost identical to the .338-06


.



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 Posted: Wed Oct 31st, 2012 07:35 AM
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Just to be completely against the grain, rather than lengthening, how about shorter?
A 338 Federal, or a 358 Win?
I have no experience with either, but I'm intrigued by them both.
I think they could be a lot of fun to experiment with.
No worries with ejectors or opening up bolt faces.
You'd have lots of mag room to seat long bullets out a ways...



 Posted: Wed Oct 31st, 2012 12:53 PM
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Rory..... I once considered the 338 Federal...but bought a 338WinMag instead.

I've shot a 358 Win.... interesting cartridge, but not high on my list at this time.



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 Posted: Wed Oct 31st, 2012 09:02 PM
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I had a friend in Alaska that built a 375 on a 338 Win Mag. case. He used a military 98 action. It's very simple to open up the extracter a little for the fatter round. It was a dandy, only about 50 fps short of the 375 H&H velocities. The moose and bear he took with it didn't know the difference. I don't know if he had to open up the feed rails, but probably. That's not a big deal either, but it must be done right.



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