Some of the documented failures of low-number 1903 Springfields were caused by this very thing, per Hatcher's Notebook. This combination will result in pressure exceeding that of proof rounds. A rifle with a properly heat-treated receiver may hold together, but I sure wouldn't make a habit of it.
Surplus Mauser Ammo and Chamer Pressure
- Thread starter The_Red_Rabbit
- Start date
Some of the documented failures of low-number 1903 Springfields were caused by this very thing, per Hatcher's Notebook. This combination will result in pressure exceeding that of proof rounds. A rifle with a properly heat-treated receiver may hold together, but I sure wouldn't make a habit of it.
Low number Springfields were single heat treated until many around and over the 276,000 serial # range were sent back for double heat treating. This went up to around 800,000.
It was also reported that a tap with a 4 oz ball peen hammer on the guide rail caused some of them to shatter like glass. There were also reports of receivers breaking from being dropped on concrete. IIRC, these receivers were withdrawn from use but many escaped because they were thought to have later been re heat treated.
If you look up some of the destruction tests on these rifles, one of the tests performed was a normal issue cartridge fired in a rifle with a bore completely plugged with mud, some with water and some with the last 10 inches of the barrel plugged with dirt. All of which could easily be duplicated under stressful conditions in the field. They also did some tests with frozen and ice filled barrels. Pressures in some of these rifles were considered t be well over 125,000 psi and the double heat treated rifles not only held up but were still considered serviceable.
TURF THE LIBERALS IN 2019
Liberals really like POOR people, they're making more of them every day
If you can't vote CPC, stay at home in protest
The Arisakas tested by PO Ackley were proven to be the strongest milsurp actions of all the rifles fielded. They were the only actions that didn't have a catastrophic failure.
Every rifle made in recent years and mostly back in the day were tested with PROOF loads. From what I've read and actually saw, at least three in a row.
I don't do the 8mm in a 30cal barrel on a regular basis but I have done it at least 20 times on a P17 sporter. To my knowledge I have never done this with STEEL CORE or special ammunition.
I believe, STEEL core ammunition, or armor piercing wouldn't swage down enough to pass through the bore. Lead on the other hand is far more ductile and maleable. I believe the Brinnell number was around 22 for the most part.
I don't encourage anyone to do this at all. However, this morning I picked an 8x57 case, that had been fireformed in a 30-06 chamber, out of the scrap brass bin. It was a WWII dated steel case round. I believe those were loaded with malleable steel core bullets for the most part, because it was cheaper than lead. Low carbon steel bullets were tested and found to be acceptably accurate at a substantially lower cost.
TURF THE LIBERALS IN 2019
Liberals really like POOR people, they're making more of them every day
If you can't vote CPC, stay at home in protest
German military switched to .323 bore in 1905 so the OP's 1916 rifle would be fine.
Yes, I wanted to mention that as well. Thus far I have not been able to find any of the PPU 7.92x57 JS in Canada, only the 8mm Mauser.
Come to think about it, the former would probably be the holy grail of 8x57 ammo, becuase it would have a performance similar to the S&B ammo, but with better brass (people have commented that the S&B brass can be a bit more difficult to reload, compared to the PPU brass.)
Perhaps people can start encouraging stores to bring in the 7.92x57 JS PPU ammo?
I've done a fair bit of research of ww2 German 8mm ammo, have shot some, tested and reloaded their components.
I believe all but the SMKH cartridge (tungsten cored AP) have been produced in brass or steel case. So that steel casing you found could have been from from a lead core round. It would have a green coloured primer sealant. All the jackets were bi-metal ( tombac and mild steel)
The mild steel core SME (spits mit eisen kern) rounds were actually more expensive to produce than the SS (schweres spitzgeschoss) lead core rounds, but did not use so much of the scarce lead that was needed for other purposes. The cores were actually cut on a lathe.
Here is a picture I took. Sorry for the size I have yet to figure out how to do a thumbnail.
Note the steel core projectile is longer and about 20 grains lighter. It's higher ballistic coefficient would make more accurate.
I do have a 30-06 chambered Colombian 98 Mauser......
I believe all but the SMKH cartridge (tungsten cored AP) have been produced in brass or steel case. So that steel casing you found could have been from from a lead core round. It would have a green coloured primer sealant. All the jackets were bi-metal ( tombac and mild steel)
The mild steel core SME (spits mit eisen kern) rounds were actually more expensive to produce than the SS (schweres spitzgeschoss) lead core rounds, but did not use so much of the scarce lead that was needed for other purposes. The cores were actually cut on a lathe.
Here is a picture I took. Sorry for the size I have yet to figure out how to do a thumbnail.
Note the steel core projectile is longer and about 20 grains lighter. It's higher ballistic coefficient would make more accurate.
I do have a 30-06 chambered Colombian 98 Mauser......
My experience with 8mm K98K 1942 RC & M4A8 x7 scout scope
Non-Corrosive Surplus stuff 197.5gr - 2537fps average (2" ish groups at 100m)
#82291 Hornady interlock 195gr - 2375fps ave (2.2" ish groups at 100m)
#V341182 S&B 196gr - 2580fps ave (1.5" ish groups at 100m)
PPU 198gr FMJ - 2056fps ave (1.1" ish groups at 100m) SUPER LOW 15" under the Hornady stuff
Non-Corrosive Surplus stuff 197.5gr - 2537fps average (2" ish groups at 100m)
#82291 Hornady interlock 195gr - 2375fps ave (2.2" ish groups at 100m)
#V341182 S&B 196gr - 2580fps ave (1.5" ish groups at 100m)
PPU 198gr FMJ - 2056fps ave (1.1" ish groups at 100m) SUPER LOW 15" under the Hornady stuff
That's interesting, thanx for that Volhy, I really appreciate that
One thing I should mention, when I do the demonstration with 8x57 in a 30-06 chambered rifle, it's always with North American commercial loaded ammo, which is loaded around 38k psi. Mind you, the first time I did it I did use surplus ammunition
TURF THE LIBERALS IN 2019
Liberals really like POOR people, they're making more of them every day
If you can't vote CPC, stay at home in protest
One thing I should mention, when I do the demonstration with 8x57 in a 30-06 chambered rifle, it's always with North American commercial loaded ammo, which is loaded around 38k psi. Mind you, the first time I did it I did use surplus ammunition
TURF THE LIBERALS IN 2019
Liberals really like POOR people, they're making more of them every day
If you can't vote CPC, stay at home in protest
