9mm Largo Safe Pressure Limit Question

jjohnson · September 14, 2008, 08:34 PM

Hi, Gents!

Hey, I'm loading for a Star Modelo Super in good condition. It's in 9mm Largo.

First question - what's the safe "factory published" working pressure for this handgun? Loading data is spotty, and I KNOW I can't load it to 9x23 Winchester pressures, but the Steyr loading data is, I believe, way below what the Largo can do in a Star Super.

Second question - didn't they make the Modelo Super in 38 Super? Or am I imagining that?

Thanks!

CowTowner · September 14, 2008, 08:41 PM

This may assist you in finding more about what was produced when and how to check proof marks and other facts for your Star pistol.

http://star-firearms.com/cgi-bin/gm1/index.shtml

There is nothing showing a 38 Super Auto.
The 9mm Largo was sometimes marked as 9mm Largo/38 ACP which means the old Colt .38 Automatic Colt Pistol round. Which should never be confused with the higher pressure .38 Super Auto.

The 5th Edition Sierra manual has load data for the 9mm Largo for 90 gr, 95 gr, 115 gr and 125 gr bullets.
Page 741 - 743

HeroHog · September 14, 2008, 09:30 PM

Take a look here: http://www.9mmlargo.com/index.htm

September 14, 2008, 08:34 PM	#1
jjohnson Member Join Date: December 10, 2007 Posts: 72	9mm Largo Safe Pressure Limit Question Hi, Gents! Hey, I'm loading for a Star Modelo Super in good condition. It's in 9mm Largo. First question - what's the safe "factory published" working pressure for this handgun? Loading data is spotty, and I KNOW I can't load it to 9x23 Winchester pressures, but the Steyr loading data is, I believe, way below what the Largo can do in a Star Super. Second question - didn't they make the Modelo Super in 38 Super? Or am I imagining that? Thanks!

September 14, 2008, 08:41 PM	#2
CowTowner Senior Member Join Date: October 17, 2007 Location: Cowtown of course! Posts: 1,747	Star Info... This may assist you in finding more about what was produced when and how to check proof marks and other facts for your Star pistol. http://star-firearms.com/cgi-bin/gm1/index.shtml There is nothing showing a 38 Super Auto. The 9mm Largo was sometimes marked as 9mm Largo/38 ACP which means the old Colt .38 Automatic Colt Pistol round. Which should never be confused with the higher pressure .38 Super Auto. The 5th Edition Sierra manual has load data for the 9mm Largo for 90 gr, 95 gr, 115 gr and 125 gr bullets. Page 741 - 743 __________________ NRA Chief Range Safety Officer, Home Firearms Safety, Pistol and Rifle Instructor *“Today, we need a nation of Minutemen, citizens who are not only prepared to take arms, but citizens who regard the preservation of freedom as the basic purpose of their daily life......”* President John F. Kennedy

September 14, 2008, 09:30 PM	#3
HeroHog Senior Member Join Date: February 16, 2008 Location: Shreveport, LA Posts: 486	Take a look here: http://www.9mmlargo.com/index.htm __________________ Speedy AKA: Hero Hog, Dr. Speed, "That fat, old, balding, Grey-bearded gimpy guy" *I don't have NEAR enough ammo on hand. `Nuff said.*