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Shooting & Reloading - Mausers, Big Bores and others >> Mauser Discussion Forum
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Gundog01
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Interesting Brenneke Mauser in 6.7x64?
      #319686 - 08/09/18 09:55 PM

I really like the lines of this Brenneke, interesting caliber, I know nothing about the 6.7x64, leaves me with some questions!
https://www.gunsamerica.com/983334091/PRE-WAR-BRENNEKE-MAUSER-6-5X64-BRENNEKE.htm

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DarylS
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Re: Interesting Brenneke Mauser in 6.7x64? [Re: Gundog01]
      #319687 - 08/09/18 11:03 PM

I could hot bring up a 6,7 Brenneke but did find the 6.5x64 Bren. which looks like a simple 6.5/06If the members 6.7 are.not a typo error, then it is likely a typo, it is likely a .270 Win., but- maybe not


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Daryl


"a gun without hammers is like a Spaniel without ears" King George V

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Rothhammer1
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Re: Interesting Brenneke Mauser in 6.7x64? [Re: DarylS]
      #319706 - 09/09/18 03:25 PM

This article ('Wildcats') mentions a 6.7X64 on page 37 of the text. You'll need a translator. Wildcats .



Edited by Rothhammer1 (10/09/18 03:11 PM)

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Igorrock
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Re: Interesting Brenneke Mauser in 6.7x64? [Re: Rothhammer1]
      #319710 - 09/09/18 05:40 PM

These old caliber markings sometimes baffles but this is very likely 6,5x64 Brenneke.

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xausa
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Re: Interesting Brenneke Mauser in 6.7x64? [Re: Igorrock]
      #319714 - 09/09/18 08:18 PM

It is interesting that the seller is evidently representing this rifle to be pre WW I, which the paneled stock and rounded pistol grip certainly suggest, when the 6.5X64 Brenneke cartridge is a post WW II development.

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Gundog01
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Re: Interesting Brenneke Mauser in 6.7x64? [Re: xausa]
      #319717 - 09/09/18 09:28 PM

Quote:

It is interesting that the seller is evidently representing this rifle to be pre WW I, which the paneled stock and rounded pistol grip certainly suggest, when the 6.5X64 Brenneke cartridge is a post WW II development.



Exactly, the gun looks like a pre war gun but the 6.5 Brenneke did not come into existence until the 90s correct?

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kuduae
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Re: Interesting Brenneke Mauser in 6.7x64? [Re: Gundog01]
      #319718 - 09/09/18 11:11 PM

The rifle looks like a pre-WW2 "Original Wilhelm Brennneke, Leipzig" rifle. These famous rifles were all built for Brenneke by Schmidt & Habermann, Suhl, and have their small "esha" trademark hidden somewhere. Often esha is found under the magazine floorplate opening lever or under the barrel. The rear sight base with the serial number is an Schmidt & Habermann earmark too. But the bolt handle and front sight cover seem to be modern replacements. The photo showing the proofmarks is quite fuzzy, but seem to be BRU, indicating a pre-1940 rebarrel job. The "DINOX" scope by Bischoff, Hildesheim, is of prewar vintage .
The 6.7x64 caliber marking is unusual, but explainable. Most European cartridges got their name not from the bullet or groove diameter, but from the smaller bore/land diameter. So the popular "6.5 mm" cartridges use .264" = 6.7 mm bullets. Some countries or companies named such cartridges for their bullet diameters and did not count the thickness of the rim into the case length. I have seen some 1920s Czech 6.5x54 M-Sch cartridges labeled 6.7x53. BTW, "7 mm"s use .284" = 7.2 mm bullets, .303 British .311" ones, while .308 and .358 Win. are on the nose.
The 6.5x64 Brenneke cartridge was released indeed in the 1990s by the Brenneke, Langenhagen company as a new development and is not mentioned in any literature on the prewar Wilhelm Brenneke cartridge developments. But old Wilhelm B. was an avid experimenter. Besides his own better known cartridges (in chronological order) 8x72R, 8x64S, 8x65RS, 7x64, 7x65R, 9.3x64, 9.3x65R, 7x72R, he is also known for experimental wildcats like 8x80R, 8x66.5 and his "Brenneke Maximum" experiments on the .404 case, 7x64.5, 7x66 (copied by Gehmann postwar and named "7x66 vom Hofe Super Express"), 8x66, 9.3x66. So I can not exclude his experimenting with a 64 mm long case using 6.7mm = .264" bullets and having an experimental rifle marked more correctly 6.7x64 built by Schmidt & Habermann.
Leipzig was occupied by US Forces on April 18, 1945, and handed over to the Soviets on July 2, 1945. Plenty of time to "liberate" the contents of Wilhelm Brenneke's shop and home.

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Rothhammer1
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Re: Interesting Brenneke Mauser in 6.7x64? [Re: kuduae]
      #319741 - 10/09/18 03:28 PM

Quote:


Most European cartridges got their name not from the bullet or groove diameter, but from the smaller bore/land diameter. So the popular "6.5 mm cartridges use .264 = 6.7 mm bullets.. Some countries or companies named such cartridges for their bullet diameters and did not count the thickness of the rim into the case length. I have seen some 1920s Czech 6.5x54 M-Sch cartridges labeled 6.7X53.



Indeed. From the 1939 Stoeger:


The '6.5X53', '6.7x53', and '6.7mm' are far more commonly referred to these days as 6.5X54 Mannlicher Schönauer.
Notice also the 8.2mm for (M1908) 8X56.

As known to MS afficianados, 9.5X57 has several names including 9.5X56, 9.5X56.7, and its 'British' designation of .375 Nitro Express Rimless 2.25" - though the 'RNE' often shows a different (lower) powder charge on ballistics charts when shown alongside 9.5X57.



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Shikari
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Re: Interesting Brenneke Mauser in 6.7x64? [Re: Rothhammer1]
      #326423 - 26/03/19 05:22 AM

Most likely a 270 Win. German markings are usually based on go, no-go gauges. 6.7 mm being the diameter of the largest gauge that would enter the barrel. Add to that the grove depth and you get the bullet diameter.

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Homer
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Re: Interesting Brenneke Mauser in 6.7x64? [Re: Gundog01]
      #326603 - 29/03/19 04:50 PM

Quote:

I really like the lines of this Brenneke, interesting caliber, I know nothing about the 6.7x64, leaves me with some questions!
https://www.gunsamerica.com/983334091/PRE-WAR-BRENNEKE-MAUSER-6-5X64-BRENNEKE.htm



G'Day Fella's,

Appologies for bringing this news to you but 6.7mm is actually 0.264" (AKA 6.5mm).
Just as Rothhammer1 has already highted to us, in his above post.

What most people don't realise is, just as the Brits so often refer to the Bore Diameter of a rifle's barrel, so do most cartridges, conceived or registered (NATO) in Europe.
So what is refered to as a 6.5mm barrel, has a Bore Diameter of 6.5mm or 0.256" and barrel Groove Diameter of 6.7mm or 0.264" (the same as the bullets).
That's approximately 0.2mm or 0.0078750" (lets round that up to 0.008" or "Eight Thou" ..... of an inch) difference, or 0.1mm or 0.0039375" / Four Thou each side.
Remember the .256 Newton cartridge (I think thats the one/its title?).

It is the same with the Good Old .303 British (0.303" and 0.311" ish) and another the 7.62mm x 51mm.
In the case of the 7.62x51mm NATO, the barrels Bore Diameter if 7.62mm or 0.300 and the Groove Diameter is 7.82mm or 0.308" (the same as the bullets it shoots (well, 0.307" Military to 0.308" Civilian).

If any of you blokes own a pair of Digital Vernier Calipers, that can switch between Metric and Imperial. Dial up the Imperial bullet diameter of your Pride and Joy, then press the Metric button FYI. ............

So the Groove and bullet diameter of your 7mm is 7.2mm and you 8mm is 8.2mm etc ...........

I hope todays Engineering Lesson from your favourite Poor Dumb Fitter, has been of some assistance to you.

So ............ nowyoucanAvagreatweekendeh!
Homer

--------------------
"Beware the Lolly Pop of Mediocrity,
Lick it Once and You Will Suck Forever"

Edited by Homer (30/03/19 07:46 AM)

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