Is a 7 x 57 and a 7mm Mauser shell the same thing? It's mostly metal
..........

Steve

Yes. There is a 57mm long case with a .473" diameter case head common to
the 6x57, 7x57, and 8x57 rounds.

SteveB wrote:
Is a 7 x 57 and a 7mm Mauser shell the same thing? It's mostly metal
.........

Steve

"Louis Ohland" wrote in message
...
Yes. There is a 57mm long case with a .473" diameter case head common to
the 6x57, 7x57, and 8x57 rounds.

SteveB wrote:
Is a 7 x 57 and a 7mm Mauser shell the same thing? It's mostly metal
.........

Steve

If I read you right, then I can shoot the shells labeled 7mm Mauser in my
Ruger?

I'll be a little more specific. I inherited a Ruger M77 with the
identifying 7 x 57 on the side of the barrel indicating the caliber. I have
since read and learned NOT to use the old military ammo, and for various
reasons. Old powder, high acid contents, poor ballistics on the round point
ammo, lots of things. I also read not to use the new shells in the old
guns. I have Googled and Googled and read and read. I come up with two
definite matches on 7 x 57 shells being sold as that specific designation,
and not as 7mm Mauser. IIRC, Norma and a Japanese brand. Then I read a lot
of the standard 7mm Mauser ammo was intentionally lightly loaded because it
was being used in the old guns. So if you wanted higher power, you had to
hand load.

But, the 7mm Mauser are listed in the dimension charts I find as 7.214 mm
bullet with a 57 mm case. In many sites, the 7 x 57 and the 7mm Mauser are
bunched together as one. I read in a Rifle Shooter Magazine that there are
4 names for this shell ..... Spanish Mauser, 7 mm Mauser, 7 x 57, and in
England the .275 Rigby. They were doing an article of the history of 7mm
cartridges.

I was at the gun store today (not a gun shop, but a borg type store) and the
guy said the 7mm Mauser shells on the shelf would NOT fit the Ruger.

I shall call Ruger tomorrow if they don't return the message I left this
evening.

Most of what I am finding would lead me to conclude this rifle will safely
shoot the 7mm Mauser cartridge, but I want to be 102% sure before I buy a
box, not to mention when I chamber one and squeeze it off. I compared
bullet and case dimensions on various sites, and they vary by only .001"
looking up 7 x 57 and 7mm Mauser cartridges. As an example, I got .472"
base diameter. (You stated .473") And I find it a little odd that although
the bullet diameter changes, the case base diameter and length does not. Is
the same amount of powder used on all three rounds?

Just hoping someone in the group would have this metal related knowledge. I
know a bit about guns, but not this deep.

Steve

"SteveB" writes:

Is a 7 x 57 and a 7mm Mauser shell the same thing? It's mostly metal

I don't know the reputation of
http://www.rifleshootermag.com/ammunition/seven_092105/
but they say they are the same:

"The cartridge is known by at least four names: Spanish Mauser,
7mm Mauser, 7x57 and in England as the .275 Rigby."

On Thu, 10 Jan 2008 20:09:23 -0800, "SteveB"
wrote:

Is a 7 x 57 and a 7mm Mauser shell the same thing? It's mostly metal
.........

Steve


Yes.

And a very nice cartridge it is, too. One of my favorites.

Gunner

On Thu, 10 Jan 2008 21:46:44 -0800, "SteveB"
wrote:


"Louis Ohland" wrote in message
...
Yes. There is a 57mm long case with a .473" diameter case head common to
the 6x57, 7x57, and 8x57 rounds.

SteveB wrote:
Is a 7 x 57 and a 7mm Mauser shell the same thing? It's mostly metal
.........

Steve

If I read you right, then I can shoot the shells labeled 7mm Mauser in my
Ruger?

Very much so Yes.


I'll be a little more specific. I inherited a Ruger M77 with the
identifying 7 x 57 on the side of the barrel indicating the caliber. I have
since read and learned NOT to use the old military ammo, and for various
reasons. Old powder, high acid contents, poor ballistics on the round point
ammo, lots of things. I also read not to use the new shells in the old
guns. I have Googled and Googled and read and read. I come up with two
definite matches on 7 x 57 shells being sold as that specific designation,
and not as 7mm Mauser. IIRC, Norma and a Japanese brand. Then I read a lot
of the standard 7mm Mauser ammo was intentionally lightly loaded because it
was being used in the old guns. So if you wanted higher power, you had to
hand load.

But, the 7mm Mauser are listed in the dimension charts I find as 7.214 mm
bullet with a 57 mm case. In many sites, the 7 x 57 and the 7mm Mauser are
bunched together as one. I read in a Rifle Shooter Magazine that there are
4 names for this shell ..... Spanish Mauser, 7 mm Mauser, 7 x 57, and in
England the .275 Rigby. They were doing an article of the history of 7mm
cartridges.

I was at the gun store today (not a gun shop, but a borg type store) and the
guy said the 7mm Mauser shells on the shelf would NOT fit the Ruger.

I shall call Ruger tomorrow if they don't return the message I left this
evening.

Most of what I am finding would lead me to conclude this rifle will safely
shoot the 7mm Mauser cartridge, but I want to be 102% sure before I buy a
box, not to mention when I chamber one and squeeze it off. I compared
bullet and case dimensions on various sites, and they vary by only .001"
looking up 7 x 57 and 7mm Mauser cartridges. As an example, I got .472"
base diameter. (You stated .473") And I find it a little odd that although
the bullet diameter changes, the case base diameter and length does not. Is
the same amount of powder used on all three rounds?

Just hoping someone in the group would have this metal related knowledge. I
know a bit about guns, but not this deep.

Steve


You have an excellent combination. Particularly if you handload.

The vast majority of 7 Mauser ammo, is loaded down to about 45,000
PSI, because of the numbers of small ring Mausers that it may be shot
in.
If you handload, you can modernize the ballistics up to 50-55k PSI (in
modern new cases) for significant ballistic improvement.

The 7 Mauser is a pretty damned good universal cartridge. Small game
up to the All American 5.

Now getting the 77 to shoot accurately...thats another story....

Gunner

Gunner wrote:
On Thu, 10 Jan 2008 21:46:44 -0800, "SteveB"
wrote:


"Louis Ohland" wrote in message
...
Yes. There is a 57mm long case with a .473" diameter case head
common to the 6x57, 7x57, and 8x57 rounds.

SteveB wrote:
Is a 7 x 57 and a 7mm Mauser shell the same thing? It's mostly
metal .........

Steve

If I read you right, then I can shoot the shells labeled 7mm Mauser
in my Ruger?

Very much so Yes.


I'll be a little more specific. I inherited a Ruger M77 with the
identifying 7 x 57 on the side of the barrel indicating the caliber.
I have since read and learned NOT to use the old military ammo, and
for various reasons. Old powder, high acid contents, poor
ballistics on the round point ammo, lots of things. I also read not
to use the new shells in the old guns. I have Googled and Googled
and read and read. I come up with two definite matches on 7 x 57
shells being sold as that specific designation, and not as 7mm
Mauser. IIRC, Norma and a Japanese brand. Then I read a lot of the
standard 7mm Mauser ammo was intentionally lightly loaded because it
was being used in the old guns. So if you wanted higher power, you
had to hand load.

But, the 7mm Mauser are listed in the dimension charts I find as
7.214 mm bullet with a 57 mm case. In many sites, the 7 x 57 and
the 7mm Mauser are bunched together as one. I read in a Rifle
Shooter Magazine that there are 4 names for this shell ..... Spanish
Mauser, 7 mm Mauser, 7 x 57, and in England the .275 Rigby. They
were doing an article of the history of 7mm cartridges.

I was at the gun store today (not a gun shop, but a borg type store)
and the guy said the 7mm Mauser shells on the shelf would NOT fit
the Ruger.

I shall call Ruger tomorrow if they don't return the message I left
this evening.

Most of what I am finding would lead me to conclude this rifle will
safely shoot the 7mm Mauser cartridge, but I want to be 102% sure
before I buy a box, not to mention when I chamber one and squeeze it
off. I compared bullet and case dimensions on various sites, and
they vary by only .001" looking up 7 x 57 and 7mm Mauser cartridges.
As an example, I got .472" base diameter. (You stated .473") And I
find it a little odd that although the bullet diameter changes, the
case base diameter and length does not. Is the same amount of
powder used on all three rounds?

Just hoping someone in the group would have this metal related
knowledge. I know a bit about guns, but not this deep.

Steve


You have an excellent combination. Particularly if you handload.

The vast majority of 7 Mauser ammo, is loaded down to about 45,000
PSI, because of the numbers of small ring Mausers that it may be shot
in.
If you handload, you can modernize the ballistics up to 50-55k PSI (in
modern new cases) for significant ballistic improvement.

The 7 Mauser is a pretty damned good universal cartridge. Small game
up to the All American 5.

Now getting the 77 to shoot accurately...thats another story....

Gunner

I have a stainless 77 in .270 . Haven't noticed any problem with accuracy ,
but then I haven't shot it much . *******s have closed the only public rifle
range in this part of Tennessee .
--

Snag aka OSG #1
'90 Ultra , "Strider"
'39 WLDD "PopCycle"
The road goes on forever ...
none to one to reply

"Snag" wrote

I have a stainless 77 in .270 . Haven't noticed any problem with accuracy
, but then I haven't shot it much . *******s have closed the only public
rifle range in this part of Tennessee .
--

Snag

Had a M77 7 mm Rem. Mag, and it shot fine. Sold it because it had bad
karma.

The problem, as I read it was that Ruger subcontracted out some of the
drilling, and it was slightly off on some rifles. So bad in some that a
full refund was given on switching to another gun.

Steve

"Joe Pfeiffer" wrote in message
...
"SteveB" writes:

Is a 7 x 57 and a 7mm Mauser shell the same thing? It's mostly metal

I don't know the reputation of
http://www.rifleshootermag.com/ammunition/seven_092105/
but they say they are the same:

"The cartridge is known by at least four names: Spanish Mauser,
7mm Mauser, 7x57 and in England as the .275 Rigby."

I got that site on Google, and it lead me to believe they were the same. I
have also found other sites that list ammo and specs for cartridge
dimensions and reloading that have the same dimensions within a thousandth
or two. They also lump them all together and then show the same ammo for
them. Except the Rigby. Don't see that too often. Read that was stated in
inches equivalent because at that time, metric measured calibers were looked
at as merely old army surplus crap. And, of course, Rigby was a Brit, where
inches originated, IIRC.

Steve

On Fri, 11 Jan 2008 05:06:03 -0800, "SteveB"
wrote:


"Snag" wrote

I have a stainless 77 in .270 . Haven't noticed any problem with accuracy
, but then I haven't shot it much . *******s have closed the only public
rifle range in this part of Tennessee .
--

Snag

Had a M77 7 mm Rem. Mag, and it shot fine. Sold it because it had bad
karma.

The problem, as I read it was that Ruger subcontracted out some of the
drilling, and it was slightly off on some rifles. So bad in some that a
full refund was given on switching to another gun.

Steve

On many 77s the faces of the actions were not trued up before the
barrel went on, and as they heated..they went all over the place.

Ive had at least 2 that were "shotguns" and had face the actions,
reinstall the barrel and reset the head space, before they would shoot
worth a damn.

77V in 308...best 5 shot group was 2". This for a heavy barreled
varminter. After truing, .5"

Thats just simply not excusable for a factory weapon.

Gunner

Gunner wrote:
On Fri, 11 Jan 2008 05:06:03 -0800, "SteveB"
wrote:


"Snag" wrote

I have a stainless 77 in .270 . Haven't noticed any problem with
accuracy , but then I haven't shot it much . *******s have closed
the only public rifle range in this part of Tennessee .
--

Snag

Had a M77 7 mm Rem. Mag, and it shot fine. Sold it because it had
bad karma.

The problem, as I read it was that Ruger subcontracted out some of
the drilling, and it was slightly off on some rifles. So bad in
some that a full refund was given on switching to another gun.

Steve

On many 77s the faces of the actions were not trued up before the
barrel went on, and as they heated..they went all over the place.

Ive had at least 2 that were "shotguns" and had face the actions,
reinstall the barrel and reset the head space, before they would shoot
worth a damn.

77V in 308...best 5 shot group was 2". This for a heavy barreled
varminter. After truing, .5"

Thats just simply not excusable for a factory weapon.

Gunner

I musta got a good one . Got this from my son when he had hard times .
Only time we took it to the range he shot a sub-1" group with 140 gr
ballistic tip rounds . My five shots we covered with a nickel . Not that bad
for an untuned rifle and factory ammo .

--

Snag aka OSG #1
'90 Ultra , "Strider"
'39 WLDD "PopCycle"
The road goes on forever ...
none to one to reply