So what action is best for this case. Would a ruger action work? How much work to get a Mauser up and running. This seems like a very nice light bigbore, kind of a step up from the 9.3x62.

Doesn't it fit in a Standard Mauser ?

Personally, I would go to a 404 over a 10.75.


A 9.3 with heavy bullets well shot is better than a 10.75 badly shot, and you also have the benefit of light to heavy bullets as well.

Just my HO from shooting both 9.3 and 404.

.

I am curious as well, but for a different cartridge case. I want to build a 6,5x68S next year in a bolt rifle. Action/Box length is the issue.

Rich

I do have a Mauser 9.3X62. I have been dreaming of building a 404 Jeffery and trying to find my dad's old 10.75 in India!

My understanding is that the 10.75 can be easily chambered in a standard M98 action with probably some minor modification to the follower of the mag. The 404 can also be done in a standard action but needs a bit more work.

The other factor is that the 10.75 can be loaded to 55000 psi and achieve the old 404 velocity of 2400 fps (ooops) 2150 fps with 400 gr projectiles while the 404 can be loaded up to get 2600 (ooops) 2400 fps.

It all depends on the action available & what the budget is I suppose. if I had the money to spare, I would go with a 404. If it was a low cost project I'd go with a 10.75.

Until then I would keep using my 9.3!


NOTE: sorry for the errors in velocity - now fixed

I really liked my 404 on a 98. It was a tight fit for sure. The gun itself was fairly light and I think a slightly slower, lighter and easier to shoot 10.75 would be a lot of fun. I don't like big heavy, dead in the hands guns and this appeals to me. I guess my search for a mauser with a nice crest will continue.

Instead of the 10.75 to get the lower velocity,
go the 404 and down load it and / or use 300 and 350gn bullets as well as the 400gn bullets.

That way you have the best of both worlds.

1909 Arengetinian action.

(1 of only 2 things of any use that came out
of Argentinia, thieving bastards !!! LOL)

.

I have two 10.75's, one on a comercial FN that was a 270, the mag length handles 400 gr bullets seated out with room to spare. The other is a vz 24 that John Farmer barreled for me, it has the reg 8mm box length and is still plenty long enough for 400 grn bullets. I think the factory load would fit in a 1910 mex mauser. The VZ has a 21" barrel and I'm just finishing the mann style stock, very light overall rifle so the loads in that wont be juiced like the FN loads are.

theback40, what kind of velocity do you get with 400 gn bullets and what barrel length?

From what I have been reading a 400 gn should be able to go 2200-2210 in a 24" barrel with reasonable pressures.

BUT, that's just reading.

Allen

I did much load development in 10.75x68 during the past three years preparing for my buff hunt this past September. In my barrel, 2150fps with 400gr AFrames was where I stopped. This was the original 404 load, not 2400fps. I think you would have a hell of a time trying to get 2400fps out of a 10.75 with the heavy bullets. With the 350's, perhaps, but I don't think so. Never shot anything lighter than custom turned 382gr monometal solids. My gun, by the way, clocks in at 8.5lbs with scope and three rounds. Easy carrying on those 7-8hr walks through the Mozambique bush. It is built on a VZ24 action with Argentine bottom metal. It took ramp and a little rail work to get it to feed perfectly.

There was some discussions about the 10.75 about 6 weeks back. Someone posted a good report about using their 10.75 on buff recently. If I remember right, he was getting his 400's 2150fps without any trouble. That is what the 404 got famous on, 400gr at 2150. The currently available brass leaves much to be desired, from what the current 10.75 owners are saying. But, it should fit into any standard action just fine. It will need some feed work obviously, and the bolt face opened up a wee bit. Much less work then a 404 J would require. But then again, 404 J ammo/brass is readily available.

What do you know, I didn't even catch VFR1 making a post lol that is who I was speaking of in my post

VFR1, yes 2400 fps from a 10,75x68 would be crazy.

Getting 2150 seems pretty straight forward, I was wondering if it was possible to to bump it up another 50 or 60 fps without getting into pressure problems.

I really don't think 2210 vs 2150 would be any better really.

Just thinking of breaking the 2200 fps number because.... well I'm a guy. It was a between the ears thing not a real world benefit kind of a thing.

Somehow it just seemed 2210 fps is so much faster, though 50 or 60 fps wouldn't matter really, silly I know.

Allen

To answer your question. Any action that can take a 3006 can likely be made to fit the 10,75x68

A ruger? Yes, certainly, and you would have a dual square bridged, interval return to zero scope mounts, 3 position safety and hinged bottom metal

Frankly, those saying go with a 404 just don't get the 10,75. It's meant to be very light

However, the 404 Jeffery is not 2400, and please stop spreading misinformation. 2200-2250, exactly the same as "book" 450/400 nitro in the double gun. Which frequently was 2100-2150. Not correct me on this, as you would be incorrect

2400 fps in a Jeffery is modern hot rodding, not original loading. It is a 404dakota at that higher pressure. Just as silly as calling a 375 loaded to 2700 with a 300 bullet an HH, while claiming nostalgia as a driving factor. Its like a kitcar cobra gt, and claiming it to be an original. Just silly

Rick, the x68 cases actually vary a lot is spec and design and are not ALL the same "anything"

Build a very light 10,75, and have likely the coolest round at the range. It will kill anything big enough to die

quote:

Originally posted by jeffeosso:
To answer your question. Any action that can take a 3006 can likely be made to fit the 10,75x68

A ruger? Yes, certainly, and you would have a dual square bridged, interval return to zero scope mounts, 3 position safety and hinged bottom metal

Frankly, those saying go with a 404 just don't get the 10,75. It's meant to be very light

However, the 404 Jeffery is not 2400, and please stop spreading misinformation. 2200-2250, exactly the same as "book" 450/400 nitro in the double gun. Which frequently was 2100-2150. Not correct me on this, as you would be incorrect

2400 fps in a Jeffery is modern hot rodding, not original loading. It is a 404dakota at that higher pressure. Just as silly as calling a 375 loaded to 2700 with a 300 bullet an HH, while claiming nostalgia as a driving factor. Its like a kitcar cobra gt, and claiming it to be an original. Just silly

Rick, the x68 cases actually vary a lot is spec and design and are not ALL the same "anything"

Build a very light 10,75, and have likely the coolest round at the range. It will kill anything big enough to die

Very wisely put

The 10,75 was build around a M98, with a kind of troublesome rebated rim.. Not a problem if one uses a good gunsmith who is taking care of proper feeding.
The biggest problem for the 10,75 was the inadequte 347 grains, thin jacketed bullets in use those early years.
With new 347 gr original profile Woodleighs that would be a very nice rifle, for moose, elk, bison and bear, and the rest of the stuff!

M

Here´s mine. Builded on a standard mid-30´s Mauser Oberndorf action.

At the time, I´m reloading the Degol 350grs strong jacket protected point bullet.


Martin

Not intending to hijack the thread but did want to post the following. Bear in mind that it is a page from the 1905 Jeffery catalogue.

[QUOTE]Originally posted by jeffeosso:


However, the 404 Jeffery is not 2400, and please stop spreading misinformation. 2200-2250, exactly the same as "book" 450/400 nitro in the double gun. Which frequently was 2100-2150. Not correct me on this, as you would be incorrect

/QUOTE]

I will post this page from the 1905 Jeffery catalogue. It is not the clearest but check out the second pic of the third paragraph in the description. Will post this without further comment.





Von Gruff.

Yes, but what was published and what was reality out of normal length barrels
were quite often two different things.

I think it was RWS who boosted up the velocity.

.

Rws loaded to 2300fps, at least that was what I got over the chrono from some origional RWS ammo from my 25in barrel.

Von Gruff.

quote:

Originally posted by metric:


Very wisely put

The 10,75 was build around a M98, with a kind of troublesome rebated rim.. Not a problem if one uses a good gunsmith who is taking care of proper feeding.
The biggest problem for the 10,75 was the inadequte 347 grains, thin jacketed bullets in use those early years.
With new 347 gr original profile Woodleighs that would be a very nice rifle, for moose, elk, bison and bear, and the rest of the stuff!

M

The only specs I could find show no rebate at all. Are their more specs on rims? Is this like 404 Jeffery specs with several floating around?

quote:

Originally posted by Von Gruff:
Rws loaded to 2300fps, at least that was what I got over the chrono from some origional RWS ammo from my 25in barrel.

Von Gruff.

These are the published loads from the ammo manufacturers for the 404J with a 400gr bullet.

Original Kynoch 404J loading with 60gr cordite - 2125fps

Later Kynoch 404J loading with nitrocellulose powder (75grs Nobels No1 or No0 powder)- 2225fps

Parker Hale 404J loaded by Norma 87gr N204 - 2245fps.

RWS 404J loaded with R903 as I recall but cant recall the exact charge - 2330fps

Old DWM 404J load I have seen advertised - 2400fps.

Pressures for the Kynoch and Parker Hale loads were held to around 36,000psi.
Have not seen pressures published for the RWS loading but would imagine to be held around the same level.

Hello Woody,

The 10,75x68 is a very nice cartridge. As somebody explained here, it will work in any action build up for the .30-06. However, I find it is most classic in a Mauser action. For example a Brazilian 1935, which is originally build for the 7x57, will allow you to use stripper clips for an easy and quick loading if you use a quick detachable scope mount.
The original supplied military magazine will limit you on the number of cartridges and I think it is better to look for an aftermarket magazine box (Blackburn) to accept 5 cartridges.

With the original bullet of 347 grains the overall cartridge length is 81.00 mm (about 3.19”). Using the 400 grains bullet most crimp groove will allow an OCL of 84.00 mm (about 3.30”)
Properly loaded, you can safely achieve 2150 fps with the 400 grain bullet.

The cartridge has no rebated rim. The CIP specs. indicate for both the rim and the base a diameter of 12.57mm (about 0.495”).
It will give you a light and easy to carry gun, which I see as a step above the 9,3x62 if loaded with the 400 grains bullet.

When I used it on eland and giraffe this autumn in Namibia, my PH gets enthusiastic about the cartridge and would like to use in on elephant as well.
The first shoot on both animals was always a 347 grains soft nose which was found under the hide of the other side of the eland followed up by a 400 grain full patch until the animal was down.




Robert

Robert, Thanks for the report. The more I think about it the more the mauser action appeals to me. I like the look of your gun. Very nice.
I just got thinking about a 95 lever gun in this caliber too. That would be big medicine for cats.

quote:

Originally posted by Robert:



Robert

Robert That is a fine piece of rifelry but there is something about the scope set-up I cant see clearly so could you post a closer pic to the front ring and mount for your scope please.

Von Gruff.

"it can beloaded with the old pattern corditte, which gives a velocity of about 2200 feet, or the new flat strip high velocity cordite, which gives about 2400 feet. ... we do nto recommend a velocity above 2200 feet with soft nosed bulelts"

2250 is about max with a standard barrel, in the real world .. 2400 is something entirely different in terms of performance and bullet construction.

the 450/400, which it was designed to compliment in a bolt gun, was 2250 with 31" barrels (might be 28.. don't recall, but 450/400 nitro can correct us.. MARK???) though the common gun usually resulted in 2150-2200 fps

(and here's where I get into that ugly grey area of "well, you are hot loading one to proove it can match the other" part)
the 10,75x68 CAN through a 400gr 2150 .. which would be might excciting in a light gun .. my 458 winmag, 405 at 2400, is exciting!

quote:

Originally posted by PoppaW:

quote:

Originally posted by metric:


Very wisely put

The 10,75 was build around a M98, with a kind of troublesome rebated rim.. Not a problem if one uses a good gunsmith who is taking care of proper feeding.
The biggest problem for the 10,75 was the inadequte 347 grains, thin jacketed bullets in use those early years.
With new 347 gr original profile Woodleighs that would be a very nice rifle, for moose, elk, bison and bear, and the rest of the stuff!

M

The only specs I could find show no rebate at all. Are their more specs on rims? Is this like 404 Jeffery specs with several floating around?

Sorry! Mixed it up with the 425 WR....

M

Hello von Gruff,
The scope is attached to the rifle via a detachable claw mount. Both scope rings are soft soldered to the steel tube using so called half rings.
The corresponding steel plate for the front ring is dovetailed into the barrel shank, which gives you additional side adjustment if needed.
This was once a traditional way of mounting scopes. I have enlarged the section of the scope ring, but this probably gives you not all the answers you need.
As the gun is currently at the gun maker, it will take a few weeks before I can take detailed pictures with the scope removed. The rust blue finish was not to my expectations when I picked up the gun for the hunt and we agreed that he do it again after I am back from Africa.



Robert

Robert, Are you taking the 10.75 to Africa? If so, what game are you planning on taking? I used my 10.75 on Buff, zebra and impala this year with most excellet results using 400gr AFrames.

Hello VFR1,
I have hunted in Namibia last week of September and first week of October 2010 with that 10.75x68. The animals taken with it was an eland bull and a giraffe bull.
I used a 350 grain strong jacket bullet with bonded and hardened lead core for the first shoot, followed by 400 grain full patch bullets until the animal was down. Therefore I believe in the 5 round magazine box .

Robert

Robert, You were in Namibia the same time I was in Mozambique.
Bob

My Type A Mauser started life as a 10.75 before being opened up to 404. With Woodleigh 350grs and 400grs bullets and ADI stabilised powders I would be happy to have the Mauser in its original guise.

Of course 404 components and factory ammo are much more widely available so my opened up Mauser is more versatile although in the light rifle it is lively with loads even around the 2250fps mark.

PoppaW I would go for the 10.75 in a standard length action and if you get hold of a hundred cases and load to reasonable levels you should have enough for a lifetime.

quote:

So what action is best for this case

How bout something new that says "Mauser" on it? Prechtl makes the Magnum action for new Mauser production still I believe? Does he make the new standard Mauser action as well? Is there representation in the US?

I wouldn't use a Magnum action.

Extra weight and Bolt throw not worth it (and can be a PITA sometimes).

.

quote:

Originally posted by 500N:
I wouldn't use a Magnum action.

Extra weight and Bolt throw not worth it (and can be a PITA sometimes).

.

I didn't suggest he use a Magnum action, I suggested he use a standard action.

quote:

Prechtl makes the Magnum action for new Mauser production still I believe? Does he make the new standard Mauser action as well?

Yes, he makes the standard, the short and the Magnum action.
Prechtl is making all of the Mauser rifles for the "Mauser Jagdwaffen" in Isny.

And by the way. It´s not an Mauser action, but Heym is chambering the SR21 for the 10,75x68 since this or next year.

Martin

quote:

Originally posted by Macifej:

quote:

Originally posted by 500N:
I wouldn't use a Magnum action.

Extra weight and Bolt throw not worth it (and can be a PITA sometimes).

.

I didn't suggest he use a Magnum action, I suggested he use a standard action.

Well, the way I read it, the Magnum comment came before the Standard Action comment
so maybe the emphasis should have been the other way round. And you didn't seem to recommend either, more just saying what was available.

.

quote:

Originally posted by 500N:

quote:

Originally posted by Macifej:

quote:

Originally posted by 500N:
I wouldn't use a Magnum action.

Extra weight and Bolt throw not worth it (and can be a PITA sometimes).

.

I didn't suggest he use a Magnum action, I suggested he use a standard action.

Well, the way I read it, the Magnum comment came before the Standard Action comment
so maybe the emphasis should have been the other way round. And you didn't seem to recommend either, more just saying what was available.

.

So, cause you're in the Southern hemisphere I should speak backwards to accomodate you ..??

quote:

Originally posted by Big Bore Fan:

quote:

Prechtl makes the Magnum action for new Mauser production still I believe? Does he make the new standard Mauser action as well?

Yes, he makes the standard, the short and the Magnum action.
Prechtl is making all of the Mauser rifles for the "Mauser Jagdwaffen" in Isny.

And by the way. It´s not an Mauser action, but Heym is chambering the SR21 for the 10,75x68 since this or next year.

Martin

Interesting on the SR21. Never handled one but have liked the design. If Herr Horneber can get some brass into the US, could be a good option.

I'll get them in, if y'all commit to 5,000 pieces. They WILL be unformed, so those with CIP and SAAMI standard chambers and dies can make your own. There is a difference

Seriously, if y'all commit to 5k pieces, I can get this done. No problem, but it will take at least 6 months to a year to get them

My apologies for the wrong velocities in my earlier post - has now been corrected!

Thanks for sparing me on the mistake!

Hello Bob,

it is nice to see that others are relying on the old calibre as well. Living in Germany the access to brass seems to be less difficult than in the US. I use Horneber brass for all of my big bores and have only the highest opinion about it. The only downside is sometimes the lead time….

It is interesting to see that you have used 400 grs. A-Frames – a bullet which I had reserved in theory for the .404 Jeffery. I remember having seen some recovered bullets in another thread and was surprised how good the bullets opened up.
Are you willing to share the powder type and load you have used to achieve this results?

Robert