Check this on SAAMI.org... 357 and 9mm both listed as 35k psi.
Their CUP ratings are different tho.
https://saami.org/wp-content/upload...FP-and-R-Approved-2015-12-14-Posting-Copy.pdf
Anybody load for 9mm Major?
- Thread starter Dvus
- Start date
Check this on SAAMI.org... 357 and 9mm both listed as 35k psi.
Their CUP ratings are different tho.
https://saami.org/wp-content/upload...FP-and-R-Approved-2015-12-14-Posting-Copy.pdf
Sorry, I was referring to CIP test pressures, not saami. CIP shows a large difference between .357 and 9mm.
I had good results in my C9 a full 5" 9mm, with stock, factory barrels
with CFE-p & BE-86 powder.
A 124 gr "plated Ball" out of the 5" gave me around 1242fps with both powders with a long 1.14" OAL.
That was with Hornady data that very seldom gets near a maximum +P loading.
ArchAngelCD
Moderator, SWCA Member, Absent Comrade
Completely incorrect. Both the 9mm Parabellum and the .357 Magnum have a SAAMI pressure limit of 35,000 psi just like "mikerjf" said.
When the .357 Magnum is listed in CUP the max pressure is 45,000 CUP. I don't know where you got 43,500 psi from?
SAAMI Standards – SAAMI
Look at SAAMI Z229.3 - 2015 on the above link and then page 17 and page 19.
ArchAngelICD, had you read my previous post #22 where I corrected my error on the SAAMI specs, you would see that I referred to C.I.P. testing, and not C.U.P testing.
CUP testing was an older method using a piston driven by ported cartridge pressure to compress a copper cylinder. Pressure was measured by how much the copper cylinder was compressed.
CIP testing uses a drilled cartridge case to allow the pressure sensor direct access to the combustion gasses to measure peak pressure. This method is widely used in Europe, and I believe to be, due to the fact that it actually measures peak combustion pressure, far superior to the SAAMI method. SAAMI uses a sensor precision fitted in the chamber itself. This sensor is at a prescribed distance from the breech face, and measures pressure exerted by the cartridge case against the chamber wall, again only in the prescribed area of the sensor. The benefit of the SAAMI method is that the sensor is reusable and can test several samples from a large production lot, thus more economical for the manufacturer. It does NOT provide the actual peak pressure inside the cartridge like the C.I.P method does, which is where I got my 43,500 psi figure from. Please see picture attached.
Here is a link that explains it all in detail. Small arms ammunition pressure testing - Wikipedia
Now, can we stop going down this rabbit hole and get back to the original thread subject of 9mm major loading component tips and suggestions. Please.
Attachments
ArchAngelCD
Moderator, SWCA Member, Absent Comrade
Incorrect again, CIP is not a method of pressure testing.
CIP is the agency who sets pressure limits in Europe. It is the overseas counterpart to SAAMI. The real name is "Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives" which is French for "Permanent International Commission for the Testing of Small Arms"
CIP pressures are reported in megapascals (or bars) whereas SAAMI reports pressures in PSI.
I don't want to have a knowledge contest here. Please double check your information before you pass it on. We all make mistakes but we need to admit when we do. It's all about getting it right, not who gets it right. Safety is paramount.
CIP is the agency who sets pressure limits in Europe. It is the overseas counterpart to SAAMI. The real name is "Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives" which is French for "Permanent International Commission for the Testing of Small Arms"
CIP pressures are reported in megapascals (or bars) whereas SAAMI reports pressures in PSI.
I don't want to have a knowledge contest here. Please double check your information before you pass it on. We all make mistakes but we need to admit when we do. It's all about getting it right, not who gets it right. Safety is paramount.
"In this corner..............."
I really love this site.
Lots of numbers are tossed out there but in the end it will get sorted out
to where everyone learns what's, what.
We are all winners, when the dust finally settles.
Plus, this is one very touchy subject..............
going PAST a +P loading , just makes my knees shake !!
I really love this site.
Lots of numbers are tossed out there but in the end it will get sorted out
to where everyone learns what's, what.
We are all winners, when the dust finally settles.
Plus, this is one very touchy subject..............
going PAST a +P loading , just makes my knees shake !!
STORMINORMAN
Member
"My hands are shaky and my knees are weak... I'm all shook up!"
Cheers!
P.S. Getting back to the original subject (or, close to it?), in general, how does one develop the "in sync" combination of comp & load? I have a comp for a G19 barrel and I thought it was designed to reduce muzzle rise for most ammo? Or is that just for a comp barrel?
Cheers!
P.S. Getting back to the original subject (or, close to it?), in general, how does one develop the "in sync" combination of comp & load? I have a comp for a G19 barrel and I thought it was designed to reduce muzzle rise for most ammo? Or is that just for a comp barrel?
ArchAngelCD
Moderator, SWCA Member, Absent Comrade
Dvus,
There is nothing wrong with AA#7 like you mentioned.
I used to use either Power Pistol or HS-6 for high end 9mm loads with a124gr bullet and W231 for range ammo. Now I like W244 and W572 for the 9mm, both work very well and especially W572.
There is nothing wrong with AA#7 like you mentioned.
I used to use either Power Pistol or HS-6 for high end 9mm loads with a124gr bullet and W231 for range ammo. Now I like W244 and W572 for the 9mm, both work very well and especially W572.
